Support FBE for managed profiles.

Allow launcher to see and attempt to launch non-crypto
aware application when profile is locked.
Hide unlock notification until parent user is unlocked.
Have unlock notitication use confirm credentials to unlock
the profile.
Updated notification strings as per suggestions in mocks
to make it clearer between users and profiles.

Bug: 27038260

Change-Id: If2d2c8148670d814544f4edd44193d15da32a289