InvalidationRequesterClient (for requesting other clients to
invalidate) will be fully implemented in subsequent CL's.
InvalidationClient (for requesting HALs to invalidate authenticatorId)
should be complete at this point.
Also updates BiometricUtils to persist a "invalidationInProgress"
flag on-disk for each <sensorId, userId> pair.
Bug: 159667191
Test: No effect on existing devices
Test: Existing enrollments not affected
Change-Id: I9eeb802b556ba86568cf41b456a4ceab4b896ef0
907910685f