Extensible select and enumeration types

and their elements in schema ATTACHMENT_SLOT_MIM taking into account BASED_ON types


 characterized_product_definition - EXTENSIBLE SELECT
          product_definition
          product_definition_relationship

 groupable_item - EXTENSIBLE GENERIC_ENTITY SELECT
          assembly_component_usage
          interface_connector_definition
          interface_definition_for
          product_definition
          product_definition_relationship