Reorganize notification Settings classes

The notification package was getting too big.

Test: make -j64 RunSettingsRoboTests
Fixes: 145224451
Change-Id: I25ba82f42f7a137d8adcce72dcf8089d0e018bdc

src/com/android/settings/notification/zen/ZenSuggestionActivity.java

@@ -0,0 +1,24 @@
+package com.android.settings.notification.zen;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.provider.Settings;
+
+public class ZenSuggestionActivity extends Activity {
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // start up zen settings activity
+        Intent settingsIntent = new Intent(Settings.ACTION_ZEN_MODE_SETTINGS);
+        startActivity(settingsIntent);
+
+        // start up onboarding activity
+        Intent onboardingActivity = new Intent(Settings.ZEN_MODE_ONBOARDING);
+        startActivity(onboardingActivity);
+
+        finish();
+    }
+}