HUTN — String representation shortcut to simplify representation of complex elemen

Sometimes the representation based in the metamodel is too complex, and some simplifications can be
taken. As an example, when representing multiplicities, the UML MM has a very complex way to do that.
However a compact string representation for multiplicities already exists and is widely used. The HUTN
should allow the users to use the special textual representations when available.
For instance: the string datavalue "1..5" culd be used instaed of
... Multiplicity {range: MultiplicityRange {lower="1";upper="5";}}
Suggestion for resolution: Enhance the configuration Metamodel with a ElementSubstitutionConfig
metaclass declaring the replacement and the string convention to be used
(attributes 'the_element : ModelElementRef' and 'replacementSpec : String')
The 'replacementSpec' may reference an OCL function defined at some place