Added code to send messages with extended encoding

app/src/main/res/drawable/ic_action_encoding.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2016 Christian Basler
+  ~
+  ~ 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:height="24dp"
+        android:width="24dp"
+        android:viewportWidth="24"
+        android:viewportHeight="24">
+    <path android:fillColor="#000" android:pathData="M8,3A2,2 0 0,0 6,5V9A2,2 0 0,1 4,11H3V13H4A2,2 0 0,1 6,15V19A2,2 0 0,0 8,21H10V19H8V14A2,2 0 0,0 6,12A2,2 0 0,0 8,10V5H10V3M16,3A2,2 0 0,1 18,5V9A2,2 0 0,0 20,11H21V13H20A2,2 0 0,0 18,15V19A2,2 0 0,1 16,21H14V19H16V14A2,2 0 0,1 18,12A2,2 0 0,1 16,10V5H14V3H16Z" />
+</vector>