Changes to Required field definitions

added the new required request property items/editionId

added the new required request property items/productId

the items request property type changed from no type to object

the response's body type changed from no type to object for status 400

the response's body type changed from no type to object for status 401

the response's body type changed from no type to object for status 404

the items response's property type changed from no type to object for status 200

added the optional property details to the response with the 400 status

added the optional property details to the response with the 401 status

added the optional property details to the response with the 404 status

added the optional property items/editionId to the response with the 200 status

added the optional property items/forms to the response with the 200 status

added the optional property items/productId to the response with the 200 status

added the required property code to the response with the 400 status

added the required property code to the response with the 401 status

added the required property code to the response with the 404 status

added the required property message to the response with the 400 status

added the required property message to the response with the 401 status

added the required property message to the response with the 404 status

added the required property status to the response with the 400 status

added the required property status to the response with the 401 status

added the required property status to the response with the 404 status