Add fingerprint settings.

- Improved layout.
- Enrollment is now working.
- Added vibration and progress feedback.
- Better fingerprint animation logic.
- Poke userActivity() when sensor is touched.
- Added progress animation.
- Only show fingerprint menu item on devices that have fingerprint hw
- Set View state to GONE for views that aren't shown & fix resulting layout issue
- Fix bug where stage wasn't advancing when returning from ChooseLockGeneric.
- Renamed FingerprintSettings to FingerprintEnroll
- Fixed bug with storing fingerprint ids that prevented the last one from being removed.
- Added better progress indication.  When remaining is at max, count that as the first step.
- Fix whitespace formatting in CL

Fixes bug 1953439

Change-Id: I721bf440c63640203af94ce21340d8281076c249