Merge changes from topic "clientmonitor-cleanup"

* changes:
  11/n: Remove unnecessary things from BiometricAuthenticator
  10/n: Split ClientMonitor functionality into appropriate subclasses
  9/n: Remove MetricsLogger and Constants from biometrics
  8/n: Move acquire message ignoring to face subclasses
  7/n: Move Fingerprint/Face AuthenticationClients to their own file
  6/n: Decouple remainder of lockout stuff
  5/n: Virtualize biometric performance stats
  4/n: Start moving fingerprint lockout to its own class
  3/n: Move internal cleanup to its own ClientMonitor subclass
  2/n: Clean up ClientMonitor
  1/n: Move modality-specific files into new subdirectory