Implement face auth success confirm button

Adds confirmation button after successful face auth on the bouncer for
secure lock device, and triggers all other disable secure lock device
logic. All device unlock and device entry logic and UI is also updated
to reflect the pending confirmation state

Flag: android.security.secure_lock_device
Fixes: 405120698
Fixes: 417071875
Bug: 401645997
Test: atest SecureLockDeviceServiceTest
Test: atest AuthenticationPolicyServiceTest
Test: atest SecureLockDeviceInteractorTest
Test: atest SceneContainerStartableTest
Test: atest DeviceEntryFaceAuthInteractorTest
Test: atest DeviceUnlockedInteractorTest
Test: atest SecureLockDeviceBiometricAuthContentViewModelTest
Test: atest BouncerOverlayContentViewModelTest
Test: atest CtsSecurityTestCases:android.security.cts.authenticationpolicy.AuthenticationPolicyManagerTest
Change-Id: I06abe274d300702161b3fe78b4dbcd48a54e24ec