Enable ECM restrictions for Usage Access and Device Admin

This commit continues the work to make all special app access
permissions ECM restrictable. Some implementation notes:

1. The FilterTouchesSwitchPreference and AppSwitchPrefernce components
   are replaced with RestrictedSwitchPreference. afaict this is a
   superset - it still filters out obscured touches and shows the app
   icon.

2. I'm treating this as mostly a refactoring, and so do not have a
   feature flag around most of the changes. Enabling ECM for them /is/
   behind the feature flag in RestrictedLockUtilsInternal.

3. app_ops_permissions_details.xml is currently only used by
   UsageAccessDetails.

Bug: 297372999
Test: Manually tested on device. Automated tests to follow
Change-Id: I65fe7ec099582de19192a77ad2e41c1558761502