Add Time to Text-Format

* [ ] Sun-Set/Rise in Format HH:MM - Depends on Calculation fix in Common:
  * https://github.com/OpenKNX/OGM-Common/pull/140
  * https://github.com/OpenKNX/OGM-Common/issues/139

# Optional

* [ ] Aktuelles Datum im Format JJJJ-MM-TT