- introduce new endpoints module
- introduce Endpoint and EndpointManager
- introduce new Logging abstraction API to allow proper mocking
- add error return value to Start and Shutdown of endpoints
- add mocks of some internals to allow easier testing
- add generate target to take care of all code generation
- HTTPS configuration is till missing
- fix a few minor things in other plugins
- cleanup of config to reduce repeating of the same values multiple times