bugfixes on topics, services

.../jastadd/flatter/transforms/ServiceChannelTransforms.jadd

...astadd/flatter/transforms/ServicePrototypeTransforms.jadd

src/main/jastadd/flatter/transforms/SignalTransforms.jadd

src/main/java/de/tudresden/inf/st/pnml/flatter/Main.java

...sden/inf/st/pnml/flatter/template/PrimitiveTemplates.java

...resden/inf/st/pnml/flatter/template/ServiceTemplates.java

...dresden/inf/st/pnml/flatter/template/SignalTemplates.java

...udresden/inf/st/pnml/flatter/template/TopicTemplates.java

...esden/inf/st/pnml/flatter/transform/ReferenceFlatter.java

...en/inf/st/pnml/flatter/transform/TransformationUtils.java

...in/resources/templates/TopicSubCallbackQueueTemplate.pnml

src/main/resources/templates/TopicSubDispatcherTemplate.pnml