added event dummy

rq_hardware/thd_roboct/thd_roboct_service.py

@@ -36,6 +36,8 @@ except ModuleNotFoundError:
     import warnings
     warnings.warn("Packages are spedific for the RoboCT of the Deggendorf Institute of Technology. \n" + 
                   "Please Contact: simon.wittl@th-deg.de")
+    class Event:
+        pass
 
 
 class TurntablePlannerParameter: