[iOS][Pen] Tilt is not normalized #267
Description
Found using d9b7c25
Device: iPad Pro using Apple Pen
Actual behaviour:
Pen.twist is always 0
Pen.tilt.y values is hanging when Pen is rotated, but the range is something like [-3.1 ... 3.1] (might not exactly be that, but that's what I detected visually)
Expected behaviour:
Pen.twist (if supported) is 0 when the pen's rotation faces up and away from the user
Pen.twist (if supported) increases as the pen is rotated clockwise around itself
Pen.twist (if supported) is ~1 when the pen has been rotated one turn