Changes to Sandbox: settle a card payment

added the new api enum value to the data/attributes/channel response property for the response status 200

added the new authorized enum value to the data/attributes/status response property for the response status 200

added the new canceled enum value to the data/attributes/status response property for the response status 200

added the optional property data/attributes/subscription to the response with the 200 status

added the required property data/relationships/transaction to the response with the 200 status

endpoint added