Add mecanum_wheels argument to leo_bringup launch file (#6)

Signed-off-by: Aleksander Szymański <bitterisland6@gmail.com>

leo_bringup/launch/leo_bringup.launch.xml

@@ -4,10 +4,15 @@
     name="model"
     default="$(find-pkg-share leo_description)/urdf/leo.urdf.xacro"
     description="Absolute path to robot urdf.xacro file" />
+  <arg
+    name="mecanum_wheels"
+    default="false"
+    description="Flag specifying wheel types of the robot for visualization purposes" />
   <arg name="tf_frame_prefix" default="" />
 
   <include file="$(find-pkg-share leo_description)/launch/state_publisher.launch.xml">
     <arg name="model" value="$(var model)" />
+    <arg name="mecanum_wheels" value="$(var mecanum_wheels)"/>
   </include>
 
   <node pkg="web_video_server"