[ECORE] - Interface marks (#37831)
[ECORE] - Interface marks (#37831)

* Added ecore types.

* Little fix.

* Little marks.

* Fixed default export.

* Import/Export marks.

* Fixed default export.

* Marks.

* Test.

* Test.

* -Deleted wrong def eContent in EObject
-Marks in EPackage and EPackageRegistry

georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped