added new menu and prototype service

.../fortiss/tooling/kernel/base/ModelElementHandlerBase.java

...rg/fortiss/tooling/kernel/base/PrototypeProviderBase.java

...rtiss/tooling/kernel/interfaces/IModelElementHandler.java

...fortiss/tooling/kernel/interfaces/IPrototypeProvider.java

.../fortiss/tooling/kernel/internal/ModelElementService.java

...org/fortiss/tooling/kernel/internal/PrototypeService.java

...ternal/handler/EMFStoreECPProjectModelElementHandler.java

...kernel/internal/navigator/NavigatorTreeLabelProvider.java

.../tooling/kernel/internal/navigator/NavigatorViewPart.java

...rg/fortiss/tooling/kernel/internal/navigator/NewMenu.java

...s/tooling/kernel/internal/util/EObjectSelectionUtils.java

...rg/fortiss/tooling/kernel/services/IPrototypeService.java