Log cross-profile metrics

Log metrics for the new app-op permission INTERACT_ACROSS_PROFILES and
each of the new app-facing and DPC-facing APIs where possible.

Simple getters do not have logging. Setters have logging but only when
the value has changed.

I always moved the logging into a separate private method. This is done
to keep the logging code from overpowering the actual logic in the
corresponding methods, particularly when there are conditions attached
to when we want to log.

There are also a few minor clean-ups in CrossProfileAppsServiceImpl.

Bug: 136249261
Bug: 149370554
Bug: 149318411
Bug: 149370875
Bug: 149370515
Test: atest com.android.cts.devicepolicy.CrossProfileAppsHostSideTest
Test: atest
com.android.cts.devicepolicy.CrossProfileAppsPermissionHostSideTest
Test: atest com.android.cts.devicepolicy.ManagedProfileCrossProfileTest
Test: atest com.android.cts.devicepolicy.ManagedProfileTest
Change-Id: Ibf2899f9b9974387ed1ba62fd02ece54a4c1564b