Move ManageAccountsSettings into Settings.

- Add activity-alias for the Activity.
- Copy the Activity from AccountsAndSyncSettings.
- Fragmentize ManageAccountsSettings.
- Remove dependency toward AccountPreferenceBase, which is
  used in AccountsAndSyncSettings widely.
- Add missing implementation derived from AccountPrefernceBase.
- Copy dependent drawables.
- Copy dependent xmls
- Copy AccountPrefernce.java.
- Copy strings, adding CHAR LIMIT.
- Remove the logic which remove the preference when its destination
  Activity is missing. We already have the destination as
  Fragment, and it never disappear.

Change-Id: Id41c63d7064aebeaae31bcd84bf4fd20a5636dfe

res/drawable/ic_list_sync_anim.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/* //device/apps/common/res/drawable/status_icon_background.xml
+**
+** Copyright 2007, 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.
+*/
+-->
+<animation-list
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:oneshot="false">
+    <item android:drawable="@drawable/ic_list_sync_anim0" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim1" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim2" android:duration="150" />
+    <item android:drawable="@drawable/ic_list_sync_anim3" android:duration="150" />
+</animation-list>
+