Geometry construction should be improved
At least the following should be fixed
- Orientation should be changed such that a beam in the positive z-axis enters the front of the sensor.
- Sensor sizes not equal to pixel_size * pixel_amount should work (or give an error as it does not...)
- Correct behaviour of all other parameters should be checked (specifying the guard rings is for example broken when you apply some asymmetry if I remember correctly)
Replaces https://gitlab.cern.ch/simonspa/allpix-squared/issues/24 and https://gitlab.cern.ch/simonspa/allpix-squared/issues/27