Adapt traffic sink action to delete controllers

We stumbled upon the issue that the traffic_sink_action is not deleting the controllers of the removed entity which leads to a segfault.

engine/cmake/generated_files.cmake

@@ -214,7 +214,10 @@ list(APPEND ${PROJECT_NAME}_SOURCES
     src/Storyboard/GenericAction/LightStateAction_impl.cpp
     src/Storyboard/GenericAction/TeleportAction_impl.cpp
     src/Storyboard/GenericAction/TrafficSignalStateAction_impl.cpp
+    src/Storyboard/GenericAction/TrafficSinkAction_base.h
     src/Storyboard/GenericAction/TrafficSinkAction_impl.cpp
+    src/Storyboard/GenericAction/TrafficSinkAction_impl.h
+    src/Storyboard/GenericAction/TrafficSinkAction.h
     src/Storyboard/GenericAction/TrafficSwarmAction_impl.cpp
     src/Storyboard/GenericAction/VisibilityAction_impl.cpp
     src/Storyboard/MotionControlAction/FollowTrajectoryAction_impl.cpp
@@ -460,9 +463,6 @@ list(APPEND ${PROJECT_NAME}_HEADERS
     gen/Storyboard/GenericAction/TrafficSignalStateAction.h
     gen/Storyboard/GenericAction/TrafficSignalStateAction_base.h
     gen/Storyboard/GenericAction/TrafficSignalStateAction_impl.h
-    gen/Storyboard/GenericAction/TrafficSinkAction.h
-    gen/Storyboard/GenericAction/TrafficSinkAction_base.h
-    gen/Storyboard/GenericAction/TrafficSinkAction_impl.h
     gen/Storyboard/GenericAction/TrafficSourceAction.h
     gen/Storyboard/GenericAction/TrafficSourceAction_base.h
     gen/Storyboard/GenericAction/TrafficSourceAction_impl.h