Add Velbus support

Initial code to support Velbus devices:

- VMB4RY - 4 Relay module
- VMB4DC - 0/1 - 10V dimmer controller
-
VMB7IN - 7 Channel input module
- VMBDME - Dimmer module
- VMBGPO - Oled
touch panel
Fixed Velbus interface ID for new installations
Merge branch 'Velbus-support' of https://github.com/brefra/DomotiGa into brefra-Velbus-support
Fixed: Baudrate typo in database, updated version number in code files.