changed AbstractAction and AbstractUserAction to inherit from core::Entity

.../servicebehavior/provider/AbstractActionItemProvider.java

...l/servicebehavior/provider/AcquireActionItemProvider.java

...ervicebehavior/provider/BlackBoxBehaviorItemProvider.java

...el/servicebehavior/provider/BranchActionItemProvider.java

...vicebehavior/provider/ExternalCallActionItemProvider.java

...icebehavior/provider/FineGrainedBehaviorItemProvider.java

...evel/servicebehavior/provider/ForkActionItemProvider.java

.../servicebehavior/provider/InternalActionItemProvider.java

...evel/servicebehavior/provider/LoopActionItemProvider.java

...l/servicebehavior/provider/ReleaseActionItemProvider.java

...usageprofile/provider/AbstractUserActionItemProvider.java

...m/usageprofile/provider/BranchUserActionItemProvider.java

...mm/usageprofile/provider/DelayUserActionItemProvider.java

.../mm/usageprofile/provider/LoopUserActionItemProvider.java

...ageprofile/provider/SystemCallUserActionItemProvider.java