add launch file

launch/ceti-table_dummy_main.launch

+<launch>
+
+    <arg name="connection_address" default="tcp://*:6576" />
+    <arg name="client_controllers" default="[]" />
+
+    <node pkg="ccf_immersive_sorting" type="dummy_sorting_controller" name="ceti" output="screen" >
+        <param name="connection_address" type="string" value="$(arg connection_address)" />
+        <param name="client_controllers" type="yaml" value="$(arg client_controllers)" />
+        <param name="scene" type="string" value="$(find ccf_immersive_sorting)/config/config_scene_ceti-table.json" />
+    </node>
+
+</launch>