Add night display pref controllers and change UX

- Convert NightDisplaySettings to a DashboardFragment
- Add preference controllers for all Night Display settings
- Change UX for activation from a toggle to a button

Bug: 73739388
Bug: 69912911
Test: make -j100 and make RunSettingsRoboTests -j100
Change-Id: Ia173f16207ba59bf57eb7546cbb1e2dbca67b063
Merged-In: Ia173f16207ba59bf57eb7546cbb1e2dbca67b063

res/layout/night_display_activation_button.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2018 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <Button
+        android:id="@+id/night_display_turn_on_button"
+        style="@style/ActionPrimaryButton"
+        android:layout_marginStart="@dimen/screen_margin_sides"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="start" />
+
+    <Button
+        android:id="@+id/night_display_turn_off_button"
+        style="@style/ActionSecondaryButton"
+        android:layout_marginStart="@dimen/screen_margin_sides"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="start" />
+
+</FrameLayout>