Extensible select and enumeration types

and their elements in schema Design_material_aspects_arm taking into account BASED_ON types


 external_identification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          File

 identification_item - EXTENSIBLE SELECT

 material_item_select - EXTENSIBLE GENERIC_ENTITY SELECT
          Item_shape
          Product_view_definition
          Shape_element

 measure_value - EXTENSIBLE SELECT
          any_number_value
          any_string_value
          length_measure
          plane_angle_measure

 property_assignment_select - EXTENSIBLE SELECT

 represented_definition - EXTENSIBLE SELECT
          Assigned_property
          Independent_property