Settings: Do not disturb automatic rule updates.

- Remove FAB for adding rules, move to last preference.
 - Add first-class event condition type and config sub-page.
 - Always show radio buttons when adding rules.
 - Add new data model for event rules.
 - Add stub condition provider for event rules (always false for now).
 - Add rule-type icons to rule preference rows.

Bug: 20064962
Change-Id: Id5acde371eb2e7d22b1f195459897614db5ba80a

src/com/android/settings/SettingsActivity.java

@@ -101,6 +101,7 @@ import com.android.settings.notification.NotificationAccessSettings;
 import com.android.settings.notification.NotificationSettings;
 import com.android.settings.notification.NotificationStation;
 import com.android.settings.notification.OtherSoundSettings;
+import com.android.settings.notification.ZenModeEventRuleSettings;
 import com.android.settings.notification.ZenModeExternalRuleSettings;
 import com.android.settings.notification.ZenModePrioritySettings;
 import com.android.settings.notification.ZenModeSettings;
@@ -341,6 +342,7 @@ public class SettingsActivity extends Activity
             WifiCallingSettings.class.getName(),
             ZenModePrioritySettings.class.getName(),
             ZenModeScheduleRuleSettings.class.getName(),
+            ZenModeEventRuleSettings.class.getName(),
             ZenModeExternalRuleSettings.class.getName(),
             ProcessStatsUi.class.getName(),
     };