backend hanwatts prediction model web interface

Merge pull request #29 in UPRFIR/backend-hanwatts-prediction-model-web-interface from UPRFIR-198-backend-energy-controller-gebruik-laten-maken-van-object to develop

* commit '20bcd8183b79e208ef04ccc2dc2027d2955de39a':
  possible fix
  possible conflict fix
  Hours terug naar 4
  Wat tests verwijderd en geupdate.
  Updated Energy files with objects