New major version with breaking changes

All API clients except AuthenticationClient can now be initialized in a consistent way. Their constructors accept the following 3 arguments:

• auth config object including either client_id and client_secret properties (for two-legged authentication), or a single token property (with an existing two-legged or three-legged access token)
• optional string with Forge API host (default: https://developer.api.autodesk.com)
• optional string with Forge availability region (US or EMEA, default: US)