Consolidate all wrappers used for testing.

- Add the wrapper package and move all wrappers to the wrapper package.
- Get rid of some wrapper interface/impl implementation and have a
wrapper class directly.

Bug: 65634579
Test: make RunSettingsRoboTests
Change-Id: Ic757d8f7bacfa7a034c7e692205bc1dc4b0e1de1

tests/robotests/src/com/android/settings/accessibility/ShortcutServicePickerFragmentTest.java

@@ -23,8 +23,8 @@ import android.os.UserManager;
 import android.test.mock.MockContentResolver;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
-import com.android.settings.applications.PackageManagerWrapper;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settingslib.wrapper.PackageManagerWrapper;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -40,7 +40,6 @@ import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;
 
-
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
 public class ShortcutServicePickerFragmentTest {