Enable Angle Sensors
This PR enables angle sensors used in upper-class convertibles like the Lenovo Yoga 9 to determine whether the device is in laptop-mode or tent-mode.
Angle sensors support further angles, though I do not know for what those angles are. Therefore I tried to make it as open as possible to add further angles later on.
This is a first step towards #318
The PR !338 would need to be reworked to base on this implementation.
Edited by Ulrich Huber