launches gazebo teleop navigation

stretch_rtab/launch/gazebo/teleop_joy.launch

@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<launch>
+    <node name="joy" pkg="joy" type="joy_node" output="screen">
+        <param name="dev" value="/dev/input/js0"/>
+        <param name="autorepeat_rate" value="20"/>
+        <param name="deadzone" value="0.05"/>
+    </node>
+
+    <node name="teleop_twist_joy" pkg="teleop_twist_joy" type="teleop_node">
+        <remap from="/cmd_vel" to="/stretch_diff_drive_controller/cmd_vel"/>
+    </node>
+</launch>