Accelbyte-py-sdk

Fix an issue with the options argument in the `accelbyte_py_sdk.initialize(..)` method.

Special thanks to [encyphered](https://github.com/encyphered) for issue [#1](https://github.com/AccelByte/accelbyte-python-sdk/pull/1).

Minor updates to the sample app module of the AccelByte Python SDK.

- New optional argument to specify which login type (client|user) to use on some commands.
- Access tokens are now echo'd on loggin commands (login, login-client).
- Updated the sample app section in the README file.

The initial release of the Python SDK for AccelByte platform.

01. IAM
02. Basic
03. Social
04. Platform
05. Group
06. Lobby
07. Session Browser
08. DSMC
09. Cloud Save
10. Telemetry