Support of Oauth Sever to Server

• supporting Oauth Token V2
• Oauth Token V2 is the new default support when creating a config file
• better respecting existing parameter via getReport2
• raising exception on error for generating token
• deepcopying the request made to getReport2 method to avoid modification on original variable.
• supporting passing the format parameter to be a logger.setFormatter() instance when passing the logger object.
• Fixing reference to documentation such for Analytics and Ingestion classes