diff --git a/.gitignore b/.gitignore
index 6c0e40f..b6626ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ build/
 # Directory created by dartdoc
 doc/api/
 /.dart_tool/
+
+pubspec.lock
diff --git a/pubspec.lock b/pubspec.lock
deleted file mode 100644
index fddb607..0000000
--- a/pubspec.lock
+++ /dev/null
@@ -1,607 +0,0 @@
-# Generated by pub
-# See https://dart.dev/tools/pub/glossary#lockfile
-packages:
-  analyzer:
-    dependency: transitive
-    description:
-      name: analyzer
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.38.3"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.2"
-  async:
-    dependency: transitive
-    description:
-      name: async
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.3.0"
-  benchmark_harness:
-    dependency: "direct dev"
-    description:
-      name: benchmark_harness
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.5"
-  boolean_selector:
-    dependency: transitive
-    description:
-      name: boolean_selector
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.5"
-  build:
-    dependency: transitive
-    description:
-      name: build
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.0"
-  build_cli_annotations:
-    dependency: transitive
-    description:
-      name: build_cli_annotations
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  build_config:
-    dependency: transitive
-    description:
-      name: build_config
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.4.1+1"
-  build_daemon:
-    dependency: transitive
-    description:
-      name: build_daemon
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.0"
-  build_resolvers:
-    dependency: transitive
-    description:
-      name: build_resolvers
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.8"
-  build_runner:
-    dependency: "direct dev"
-    description:
-      name: build_runner
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.7.1"
-  build_runner_core:
-    dependency: transitive
-    description:
-      name: build_runner_core
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.1.0"
-  build_test:
-    dependency: "direct dev"
-    description:
-      name: build_test
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.8"
-  built_collection:
-    dependency: transitive
-    description:
-      name: built_collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.2.2"
-  built_value:
-    dependency: transitive
-    description:
-      name: built_value
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "6.7.1"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.2"
-  checked_yaml:
-    dependency: transitive
-    description:
-      name: checked_yaml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  cli_util:
-    dependency: transitive
-    description:
-      name: cli_util
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.3+2"
-  code_builder:
-    dependency: transitive
-    description:
-      name: code_builder
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.2.0"
-  collection:
-    dependency: transitive
-    description:
-      name: collection
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.14.12"
-  convert:
-    dependency: transitive
-    description:
-      name: convert
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.1"
-  coverage:
-    dependency: transitive
-    description:
-      name: coverage
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.13.2"
-  coveralls:
-    dependency: transitive
-    description:
-      name: coveralls
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.5.0"
-  crypto:
-    dependency: transitive
-    description:
-      name: crypto
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
-  csslib:
-    dependency: transitive
-    description:
-      name: csslib
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.16.1"
-  csv:
-    dependency: "direct main"
-    description:
-      name: csv
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "4.0.3"
-  dart_style:
-    dependency: transitive
-    description:
-      name: dart_style
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.10"
-  fixnum:
-    dependency: transitive
-    description:
-      name: fixnum
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.9"
-  front_end:
-    dependency: transitive
-    description:
-      name: front_end
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.25"
-  glob:
-    dependency: transitive
-    description:
-      name: glob
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.7"
-  graphs:
-    dependency: transitive
-    description:
-      name: graphs
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.0"
-  grinder:
-    dependency: "direct dev"
-    description:
-      name: grinder
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.8.3+1"
-  grinder_coveralls:
-    dependency: transitive
-    description:
-      name: grinder_coveralls
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.1"
-  html:
-    dependency: transitive
-    description:
-      name: html
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.14.0+2"
-  http:
-    dependency: transitive
-    description:
-      name: http
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.12.0+2"
-  http_multi_server:
-    dependency: transitive
-    description:
-      name: http_multi_server
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.0"
-  http_parser:
-    dependency: transitive
-    description:
-      name: http_parser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.1.3"
-  injector:
-    dependency: transitive
-    description:
-      name: injector
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.8"
-  io:
-    dependency: transitive
-    description:
-      name: io
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.3.3"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.6.1+1"
-  json_annotation:
-    dependency: transitive
-    description:
-      name: json_annotation
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
-  kernel:
-    dependency: transitive
-    description:
-      name: kernel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.3.25"
-  lcov:
-    dependency: transitive
-    description:
-      name: lcov
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "5.4.0"
-  logging:
-    dependency: transitive
-    description:
-      name: logging
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.11.3+2"
-  matcher:
-    dependency: transitive
-    description:
-      name: matcher
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.12.5"
-  meta:
-    dependency: transitive
-    description:
-      name: meta
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.7"
-  mime:
-    dependency: transitive
-    description:
-      name: mime
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.6+3"
-  ml_linalg:
-    dependency: "direct main"
-    description:
-      name: ml_linalg
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "12.0.2"
-  ml_tech:
-    dependency: "direct dev"
-    description:
-      name: ml_tech
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.8"
-  mockito:
-    dependency: "direct dev"
-    description:
-      name: mockito
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.2"
-  multi_server_socket:
-    dependency: transitive
-    description:
-      name: multi_server_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.2"
-  node_preamble:
-    dependency: transitive
-    description:
-      name: node_preamble
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.8"
-  package_config:
-    dependency: transitive
-    description:
-      name: package_config
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  package_resolver:
-    dependency: transitive
-    description:
-      name: package_resolver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.10"
-  path:
-    dependency: transitive
-    description:
-      name: path
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.4"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.8.0+1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
-  pool:
-    dependency: transitive
-    description:
-      name: pool
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.0"
-  pub_semver:
-    dependency: transitive
-    description:
-      name: pub_semver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.4.2"
-  pubspec_parse:
-    dependency: transitive
-    description:
-      name: pubspec_parse
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.5"
-  quiver:
-    dependency: "direct main"
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.5"
-  shelf:
-    dependency: transitive
-    description:
-      name: shelf
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.7.5"
-  shelf_packages_handler:
-    dependency: transitive
-    description:
-      name: shelf_packages_handler
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.4"
-  shelf_static:
-    dependency: transitive
-    description:
-      name: shelf_static
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.8"
-  shelf_web_socket:
-    dependency: transitive
-    description:
-      name: shelf_web_socket
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.3"
-  source_map_stack_trace:
-    dependency: transitive
-    description:
-      name: source_map_stack_trace
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.5"
-  source_maps:
-    dependency: transitive
-    description:
-      name: source_maps
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.10.8"
-  source_span:
-    dependency: transitive
-    description:
-      name: source_span
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.5"
-  stack_trace:
-    dependency: transitive
-    description:
-      name: stack_trace
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.9.3"
-  stream_channel:
-    dependency: transitive
-    description:
-      name: stream_channel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  stream_transform:
-    dependency: transitive
-    description:
-      name: stream_transform
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.19"
-  string_scanner:
-    dependency: transitive
-    description:
-      name: string_scanner
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.5"
-  term_glyph:
-    dependency: transitive
-    description:
-      name: term_glyph
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.0"
-  test:
-    dependency: "direct dev"
-    description:
-      name: test
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.10"
-  test_api:
-    dependency: transitive
-    description:
-      name: test_api
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.7"
-  test_core:
-    dependency: transitive
-    description:
-      name: test_core
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.9+1"
-  timing:
-    dependency: transitive
-    description:
-      name: timing
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.1.1+2"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.1.6"
-  vm_service:
-    dependency: transitive
-    description:
-      name: vm_service
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
-  vm_service_lib:
-    dependency: transitive
-    description:
-      name: vm_service_lib
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.22.2+1"
-  watcher:
-    dependency: transitive
-    description:
-      name: watcher
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.9.7+12"
-  web_socket_channel:
-    dependency: transitive
-    description:
-      name: web_socket_channel
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.15"
-  where:
-    dependency: transitive
-    description:
-      name: where
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "6.4.0"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
-  xrange:
-    dependency: transitive
-    description:
-      name: xrange
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.0.8"
-  yaml:
-    dependency: transitive
-    description:
-      name: yaml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.2.0"
-sdks:
-  dart: ">=2.5.0 <3.0.0"