Use custom drawable for UDFPS enrollment progress bar
1) Removes UdfpsProgressBar and associated baggage
2) Creates entirely custom UdfpsEnrollProgressBarDrawable to support
any required UX going forwards
3) UdfpsEnrollProgressBarDrawable is owned by UdfpsEnrollDrawable.
UdfpsEnrollDrawable should be the source of truth for any
UDFPS enrollment animations.
Note: This moves the handler up a few layers to UdfpsEnrollView, so
that child views/drawables receive callbacks on the right thread.
Bug: 187460696
Test: manual
Change-Id: If3362e340de8074e62cb5f69e739c1d687914fad
12 files changed