+ latest updates to the meta-model implementation (breaking changes, other...

+ latest updates to the meta-model implementation (breaking changes, other components still to be aligned)

* changed actualParameter to argument in TDReference and ActionReference
+ added conformsTo(name) operation
* changed SimpleDataType extension to [0..1] and adapted operations
+ added resolveDataType to PredefinedFunctionCall, DataElementUse
* renamed operation extending to isExtending
* changed Constraint.quantifier to DataUse
+ updated GenModel