Added zen settings messages and calls preferences.

- Made ZenModeSettings and ZenModeBehaviorSettings a DashboardFragment
- Switches in ZenModeBehaviorSettings all have their own preference controllers
- Instead of a dropdown, messages & calls have their own pages & preference controllers
- Added basic turn on/off DND button in settings (dialog not yet implemented)

Bug: 63077372
Fixes: 69057767
Test: make -j40 RunSettingsRoboTests
Change-Id: I1c70f77053713f66f873ee578477f23cfd7985bb

src/com/android/settings/search/SearchIndexableResources.java

@@ -69,6 +69,8 @@ import com.android.settings.notification.ConfigureNotificationSettings;
 import com.android.settings.notification.SoundSettings;
 import com.android.settings.notification.ZenModeAutomationSettings;
 import com.android.settings.notification.ZenModeBehaviorSettings;
+import com.android.settings.notification.ZenModeEventRuleSettings;
+import com.android.settings.notification.ZenModeScheduleRuleSettings;
 import com.android.settings.notification.ZenModeSettings;
 import com.android.settings.print.PrintSettingsFragment;
 import com.android.settings.security.EncryptionAndCredential;
@@ -168,6 +170,8 @@ public final class SearchIndexableResources {
         addIndex(LockscreenDashboardFragment.class);
         addIndex(ZenModeBehaviorSettings.class);
         addIndex(ZenModeAutomationSettings.class);
+        addIndex(ZenModeEventRuleSettings.class);
+        addIndex(ZenModeScheduleRuleSettings.class);
     }
 
     private SearchIndexableResources() {