Created one launch file for robotiq_description (#2)

Author: pucciland95

robotiq_description/config/robotiq_85.rviz robotiq_description/config/robotiq_85_gripper.rviz

@@ -1,13 +1,11 @@
 <?xml version="1.0"?>
 <launch>
-  <arg name="gui" default="True" />
-  
-  <param name="robot_description" command="$(find xacro)/xacro --inorder $(find robotiq_description)/urdf/robotiq_85_gripper.xacro" />
-  
-  <param name="use_gui" value="$(arg gui)"/>
+  <!-- Possibilities: robotiq_hande_gripper and robotiq_85_gripper -->
+  <arg name="gripper_name" default="robotiq_85_gripper" doc="name of the gripper you want to visualise"/>
+
+  <param name="robot_description" command="$(find xacro)/xacro --inorder $(find robotiq_description)/urdf/$(arg gripper_name).xacro" />
   <node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" />
-  
   <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher" />
 
-  <node name="rviz" pkg="rviz" type="rviz" args="-d $(find robotiq_description)/config/robotiq_85.rviz  " required="true" />
+  <node name="rviz" pkg="rviz" type="rviz" args="-d $(find robotiq_description)/config/$(arg gripper_name).rviz  " required="true" />
 </launch>