fix ROS grammar tests and validators

Author: ipa-nhg

plugins/de.fraunhofer.ipa.ros.xtext.tests/resources/basic_msgs/common_msgs.ros

@@ -116,4 +116,4 @@ PackageSet{
       TopicSpec MarkerArray{ message { Marker[] markers }},
       TopicSpec MenuEntry{ message { uint32 id uint32 parent_id string title string command uint8 FEEDBACK=0 uint8 ROSRUN=1 uint8 ROSLAUNCH=2 uint8 command_type }}
     }}
-}
+}

plugins/de.fraunhofer.ipa.ros.xtext.tests/resources/basic_msgs/ros_core.ros

@@ -37,4 +37,4 @@ PackageSet{
       ServiceSpec SetBool{ request { bool data } response { bool success string message } },
       ServiceSpec Trigger{ request {  } response { bool success string message } }
     }}
-}
+}