Changes to List Users

added the optional property detail/items/ctx to the response with the 422 status

added the optional property detail/items/input to the response with the 422 status

response property users/items/created_at list-of-types was widened by adding types null to media type application/json of response 200

response property users/items/created_by list-of-types was widened by adding types null to media type application/json of response 200

query request parameter id_prefix list-of-types was widened by adding types null

query request parameter roles list-of-types was widened by adding types null

for the query request parameter id_prefix, the type was generalized from string to no type

for the query request parameter roles, the type was generalized from array to no type

endpoint added