Add support for device state based auto-rotation preferences in Settings.

- Creates new preferences that are shown when device-state rotation
  is supported.
- Hides standard preferences when device-state rotation is supported.
- Controllers/Preferences for individual folded/unfolded rotation
  settings are created and added programatically based on the settable
  device states available.

Test: Manually + Unit tests
Bug: 195757480
Change-Id: If254220ca3018bc6ec1c4e3947375733f6816f92

tests/robotests/src/com/android/settings/testutils/shadow/ShadowDeviceStateRotationLockSettingsManager.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+package com.android.settings.testutils.shadow;
+
+import android.content.Context;
+
+import com.android.settingslib.devicestate.DeviceStateRotationLockSettingsManager;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+@Implements(DeviceStateRotationLockSettingsManager.class)
+public class ShadowDeviceStateRotationLockSettingsManager {
+
+    private static boolean sDeviceStateRotationLockEnabled;
+
+    @Implementation
+    public static boolean isDeviceStateRotationLockEnabled(Context context) {
+        return sDeviceStateRotationLockEnabled;
+    }
+
+    public static void setDeviceStateRotationLockEnabled(boolean enabled) {
+        sDeviceStateRotationLockEnabled = enabled;
+    }
+}