Add Night Light Suggestion and tests

Night Light settings suggestion will only show when the user
has not previously interacted with Night Light.

Bug: 37207263
Test: make ROBOTEST_FILTER=\
"(SettingsSuggestionsTest|SuggestionFeatureProviderImplTest)"\
RunSettingsRoboTests
Change-Id: I432d5fef19f5e4a52503da136b044598cb82164a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index cbf1eae..ef77563 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -921,6 +921,26 @@
                 android:value="true" />
         </activity>
 
+        <activity android:name="Settings$NightDisplaySuggestionActivity"
+            android:enabled="@*android:bool/config_nightDisplayAvailable"
+            android:taskAffinity=""
+            android:icon="@drawable/ic_settings_night_display">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.settings.suggested.category.FIRST_IMPRESSION" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.dismiss"
+                android:value="6,10,30" />
+            <meta-data android:name="com.android.settings.title"
+                android:resource="@string/night_display_suggestion_title" />
+            <meta-data android:name="com.android.settings.summary"
+                android:resource="@string/night_display_suggestion_summary" />
+            <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
+                android:value="true" />
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.display.NightDisplaySettings" />
+        </activity>
+
         <activity android:name="Settings$DeviceInfoSettingsActivity"
                 android:label="@string/device_info_settings"
                 android:icon="@drawable/ic_settings_about"