swift syntax upgrade & workflow

Merge pull request #4 from num42/swift_syntax_and_workflow

upgrade swift syntax and add GitHub workflow

1.0.6

Update Columnifier.swift

1.0.4

Full Changelog: 1.0.3...1.0.4

1.0.3

update versions and fix warnings

update swift-syntax to 510.0.1

1.0.2

Update Package.swift

Merge pull request #3 from num42/release/1.0.1

Removed Swiftlint

Initial release

Merge pull request #2 from num42/ios/feature/remove-ssh-dependency

- removed ssh dependency