Changes to Update a shipment

added the new optional request property metadata

added the enum value metadata to the property items/ of the query request parameter fields

added the optional property metadata to the response with the 200 status

added the new optional request property carrier_name

added the new optional request property lineitems

added the new optional request property organization_id

added the new optional request property tracking_url

added the enum value carrier_name to the property items/ of the query request parameter fields

added the enum value lineitems to the property items/ of the query request parameter fields

added the enum value organization_id to the property items/ of the query request parameter fields

added the enum value tracking_url to the property items/ of the query request parameter fields

added the optional property carrier_name to the response with the 200 status

added the optional property lineitems to the response with the 200 status

added the optional property organization_id to the response with the 200 status

added the optional property tracking_url to the response with the 200 status