added missing offering topic to HeadIKUnit

source/RobotAPI/components/units/HeadIKUnit.cpp

@@ -32,6 +32,7 @@ namespace armarx
 
         cycleTime = getProperty<int>("CycleTime").getValue();
         offeringTopic("DebugDrawerUpdates");
+        offeringTopic(getProperty<std::string>("HeadIKUnitTopicName").getValue());
     }