feat(core): create a separate core for IBM python SDK

Author: ehdsouza

CONTRIBUTING.md

@@ -33,7 +33,7 @@ You probably want to set up a [virtualenv].
 
 1. Clone this repository:
     ```sh
-    git clone https://github.com/watson-developer-cloud/python-sdk.git
+    git clone git@github.com:IBM/python-sdk-core.git
     ```
 1. Install the sdk as an editable package using the current source:
     ```sh

README.md

@@ -1,3 +1,6 @@
+[![Build Status](https://travis-ci.com/IBM/python-sdk-core.svg?branch=master)](https://travis-ci.com/IBM/python-sdk-core)
+[![Latest Stable Version](https://img.shields.io/pypi/v/ibm-cloud-sdk-core.svg)](https://pypi.python.org/pypi/ibm-cloud-sdk-core)
+
 # python-sdk-core
 This project contains the core functionality used by Python SDK's generated by the IBM OpenAPI 3 SDK Generator (openapi-sdkgen).
 Python code generated by openapi-sdkgen will depend on the function contained in this project.