Extensible select and enumeration types

and their elements in schema PDM_MATERIAL_ASPECTS_MIM taking into account BASED_ON types


 external_identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          document_file

 identification_item - EXTENSIBLE SELECT
          document_file
          product_as_individual
          product_as_individual_version
          product_as_individual_view

 versionable_item - EXTENSIBLE SELECT
          document_file