Extensible select and enumeration types

and their elements in schema DOCUMENT_ORDER_MIM taking into account BASED_ON types


 characterized_product_definition - EXTENSIBLE SELECT
          product_definition
          product_definition_relationship

 external_identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          document_file
          product_definition

 for_document_groupable_item - EXTENSIBLE GENERIC_ENTITY SELECT
          product_definition

 identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          document_file
          ordered_items_group_assignment

 ordered_items_groupable_item - EXTENSIBLE GENERIC_ENTITY SELECT
          product_definition_relationship
          representation_item