5/n: Virtualize biometric performance stats

Moves the performance tracker to its own singleton class. This should
allow us to decouple it from wherever it's accessed (e.g. ClientMonitor)

Bug: 157790417
Test: 1) Keyguard/BiometricPromptDemo auth, acquire, reject with
         multiple users, with and without crypto, lockout,
         permanentLockout
      2) Kill HAL few times
      3a) adb shell dumpsys fingrprint
      3b) adb shell dumpsys face

Change-Id: I49bcf161d29be35ba9339855a0c62931f71c2f87