Extensible select and enumeration types

and their elements in schema DISPOSITION_MIM taking into account BASED_ON types


 approval_item - EXTENSIBLE GENERIC_ENTITY SELECT

 date_and_time_item - EXTENSIBLE SELECT
          approval_person_organization

 date_item - EXTENSIBLE SELECT
          approval_person_organization

 description_item - EXTENSIBLE GENERIC_ENTITY SELECT
          disposition

 identification_item - EXTENSIBLE SELECT
          disposition

 versionable_item - EXTENSIBLE SELECT