strong naming assumption in the RTDAccessor generation

[jdeantoni]

For the RTDaccessor generation to work it is mandatory to name the aspect of a class XXX as XXXAspect. This is a restriction easy to remove by changing the Builder here:

https://github.com/eclipse/gemoc-studio-execution-moccml/blob/f2d656ce71fe4cc1ce63309e1b91b04b5f585c8b/ccsljava_xdsml/plugins/org.eclipse.gemoc.execution.concurrent.ccsljavaxdsml.ui/src/main/java/org/eclipse/gemoc/execution/concurrent/ccsljavaxdsml/ui/builder/MoccmlLanguageProjectBuilder.java#L341