Thread WatchedIntentFilter in PackageManagerService

Bug: 181964615

Replace most occurrences of IntentFilter with WatchedIntentFilter, so
that any changes to the objects will invalidate the PM snapshot.

Test: atest
 * FrameworksServicesTests:WatchedIntentHandlingTest
 * FrameworksServicesTests:AppsFilterTest
 * FrameworksServicesTests:PackageInstallerSessionTest
 * FrameworksServicesTests:PackageManagerServiceTest
 * FrameworksServicesTests:PackageManagerSettingsTests
 * FrameworksServicesTests:ScanTests
 * FrameworksServicesTests:UserSystemPackageInstallerTest
 * PackageManagerServiceBootTest
 * UserLifecycleTests#startUser
 * UserLifecycleTests#stopUser
 * UserLifecycleTests#switchUser
 * android.appsecurity.cts.EphemeralTest
 * android.appsecurity.cts.InstantAppUserTest
 * FrameworksServicesTests:WatcherTest
 * CtsContentTestCases:IntentFilterTest
 * CtsDynamicMimeHostTestCases

Change-Id: Ibc931daba594038929bafeff9cc2515d770ff60c