Messaging: Use xml drawables

Replace the pngs with xml drawables

Change-Id: I71be32c36194d3b34b54287a09789f73087600ef

res/drawable/ic_camera_rear_light.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     SPDX-FileCopyrightText: Material Design Authors / Google LLC
+     SPDX-License-Identifier: Apache-2.0
+-->
+<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="#FFF"
+        android:pathData="M12,6C10.89,6 10,5.1 10,4A2,2 0 0,1 12,2C13.09,2 14,2.9 14,4A2,2 0 0,1 12,6M17,0H7A2,2 0 0,0 5,2V16A2,2 0 0,0 7,18H17A2,2 0 0,0 19,16V2A2,2 0 0,0 17,0M14,20V22H19V20M10,20H5V22H10V24L13,21L10,18V20Z" />
+</vector>