Copy NetworkSelectSettings to settings app

This is a clean copy except:
1. Fix issues in strings.xml to make it pass pre-upload check
   a) add "CHAR_LIMIT"
   b) Update special character

Future CL will remove compile error and make it compatible with
settings.

Bug: 114749736
Test: Build
Change-Id: I8fe28ff1358f94334ff9663a4404628ae0eff9af

res/drawable/signal_strength_1x.xml

@@ -0,0 +1,29 @@
+<?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.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="8.5dp"
+    android:height="17dp"
+    android:viewportWidth="12.0"
+    android:viewportHeight="24.0"
+    android:tint="?android:attr/colorControlNormal">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M3.500000,11.000000L1.800000,11.000000L1.800000,4.400000L0.200000,5.100000L0.200000,3.700000l3.100000,-1.300000l0.200000,0.000000L3.500000,11.000000z"/>
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:pathData="M8.600000,5.500000l1.200000,-3.000000l1.900000,0.000000L9.700000,6.700000l2.200000,4.300000L9.900000,11.000000L8.700000,7.900000L7.400000,11.000000L5.500000,11.000000l2.100000,-4.300000L5.600000,2.500000l1.900000,0.000000L8.600000,5.500000z"/>
+</vector>