Touch Thermostat

I just updated the github sources. This includes a bugfix and also an adjustment for the temperature. This adjustment requires a change in my HomieNodeCollection. That changes was also published to github. However, platformio has not recognized the new library version yet, so building fails until platformio distributes version 0.8.1 of HomieNodeCollection.

The push to github also includes the Freecad-Files for the Wall adapter.