Rename maven projects hogajama-rs and hogajama-services

[ErhardSiegl]

The responsibilities of hogajama-services (and hogajama-rs) is not clear. Especially the WateringMDB and Scaling-Scheduler don't fit anywhere. I propose to change hogajama-rs to hogajama-facade and hogajama-services to hogajama-adapters.
Facade should be an entrypoint from external (provided REST-services, schedulers, MDBs) and Adapter should abstract external systems like database and AMQ (outgoing calls).