<<rule>> Create: Enumeration Attribute

<<preserve>> toContainerClass : EClass <<create>> newAttribute : EAttribute <<create>> defaultValueLiteral = literalName <<preserve>> toEnumeration : EEnum <<require, post>> postLiteral : EEnumLiteral <<require, post>> name = literalName <<create>> eType <<create>> eContainingClass eStructuralFeatures <<require, post>> eEnum eLiterals