Merge "Create KeyguardFaceAuthManager to provide API for running face auth & face detection from Keyguard" into tm-qpr-dev am: e9797ad610

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20789601

Change-Id: I773e6320f506fa92de0d78724b3116c41039321c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>