This change adds an entry point for Remote Auth enrollment and
navigation through the flow.
Bug: b/293906345
Test: make RunSettingsRoboTests -j40
Change-Id: I9bc803e24c4181ed73a0ef90b171897c677e71d1
This flow will be included in Device Unlock settings with the
Fingerprint and Face Unlock.
Bug: b/293905106
Test: atest RemoteAuthEnrollFinishTest
Change-Id: I5d24e23948e508dcff5216cd63eba8d9fc9ec97f