WatchedIntentResolver now uses WatchedIntentFilter

Bug: 181964615

Convert WatchedIntentResolver to use WatchedIntentFilter instead of
IntentFilter.  WatchedIntentFilters are converted back to
IntentFilters when they are used in APIs.  The final conversion to
WatchedIntentFilter in PackageManagerService happens in a follow-up
commit.

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
 * FrameworksServicesTests:WatcherTest

Change-Id: Iba80142b44268443221c22b5626fc53d60f2aa9f