This a layer of flag guarding only for the implementation of Private Space features excluding the APIs. The MVP flag allow_private_profile still guards all the features including the APIs.
Bug: 326060689
Test: Manual - a few verifications that some feeatures are unavailable when this flag is disabled
Test: Run presubmits and verify that nothing breaks
Change-Id: I05f7e2f20c6132b33484bb133ce03a933ece485f
This includes below changes:
1. Add new sub settings page in Private Space settings with option to
swithch between private profile lock and device screen lock
2. Call Private profile lock setup when swithcing to private lock from
screen lock.
3. Preference to change private lock when a separate Private lock is set
Bug: 308862923
Test: atest UseOneLockPreferenceControllerTest,
PrivateSpaceLockControllerTest
Change-Id: I0a6d8c7dfbd0ffea19db03ffd6dfe7aa520c9684