Add Face and Fingerprint (Co-Ex) support to biometric prompt.

Migrate simple views to Kotlin & remove useless test. Will add new tests in a follow up change.

Bug: 217393533
Test: atest com.android.systemui.biometrics com.android.server.biometrics CommandQueueTest
Test: manual (via BP test app)
Change-Id: Ic8c80344d75f34f4b5f65ef14b61bbb5cddb0349
40 files changed