Start barometer bricklet support.
Add debounce.
Add altitude.
More airpressure.
Add Averaging.
Add chip temperature.
Add reference air pressure.
Add peridical callbacks.
Threshold type in device spitted in two types, one for 16bit and one for 32bit value.
Refactor all files which use the old Threshold type.
Add threshold.
Update documentation.
Merge branch 'feature/barometer' into develop