Add back resources exported for external usage 2

These resources are not used by Settings, but is exported for external
usage by other apps.

Put them into res-export folder and add a README to prevent from
accidentally clean ups.

Bug: 234570979
Test: make Settings
Change-Id: Ia72cbde0b073ccb7624abeecb66e48d9c646f401

res-export/drawable/ic_package_verifier_disabled.xml

@@ -0,0 +1,25 @@
+<!--
+    Copyright (C) 2017 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.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+
+    <path
+        android:fillColor="#FFEF6C00"
+        android:pathData="M12,4.24l6,3v4.1c0,3.9 -2.55,7.5 -6,8.59c-3.45,-1.09 -6,-4.7 -6,-8.59v-4.1L12,4.24M12,2L4,6v5.33c0,4.93 3.41,9.55 8,10.67c4.59,-1.12 8,-5.73 8,-10.67V6L12,2L12,2zM11,15h2v2h-2V15zM13,8h-2v5h2V8z"/>
+</vector>