Migrated bug from GitHub: https://github.com/Unity-Technologies/InputSystem/issues/267

Device: iPad Pro using Apple Pen

Actual behavior:
- 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 behavior:
- 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