Extensible select and enumeration types

and their elements in schema STATE_OBSERVED_MIM taking into account BASED_ON types


 action_items - EXTENSIBLE GENERIC_ENTITY SELECT
          applied_state_type_assignment

 classification_item - EXTENSIBLE GENERIC_ENTITY SELECT
          state_observed
          state_observed_assignment
          state_observed_relationship
          state_type
          state_type_assignment
          state_type_relationship

 identification_item - EXTENSIBLE SELECT
          state_type
          state_type_relationship

 state_observed_of_item - EXTENSIBLE GENERIC_ENTITY SELECT

 state_type_of_item - EXTENSIBLE GENERIC_ENTITY SELECT

 versionable_item - EXTENSIBLE SELECT