add missing relation

src/main/jastadd/ecore.relast

@@ -37,6 +37,8 @@ rel EAnnotation.References* -> EObject;
 rel EGenericType.ETypeParameter? -> ETypeParameter;
 rel EGenericType.EClassifier? -> EClassifier;
 
+rel EPackage.Package* -> EPackage;
+
 // transient stuff (the inverse directions of the containment relations are missing)
 
 // EClassifier : ENamedElement ::= <InstanceClass:Class> <DefaultValue:Object>;