TCPControlUnitObserver: Added default name of TCPControlUnit

source/RobotAPI/components/units/TCPControlUnitObserver.h

@@ -38,7 +38,7 @@ namespace armarx
         TCPControlUnitObserverPropertyDefinitions(std::string prefix):
             ComponentPropertyDefinitions(prefix)
         {
-            defineRequiredProperty<std::string>("TCPControlUnitName", "Name of the TCPControlUnit");
+            defineOptionalProperty<std::string>("TCPControlUnitName", "TCPControlUnit", "Name of the TCPControlUnit");
         }
     };