Changes to Batch get dataplane transfers

removed the optional property items/logs/items/createdAt from the response with the 200 status

removed the optional property items/logs/items/dataplaneProcessId from the response with the 200 status

removed the optional property items/logs/items/newState from the response with the 200 status

removed the optional property items/logs/items/previousState from the response with the 200 status

added the media type application/json for the response with the status 400

added the media type application/json for the response with the status 500

added the optional property items/logs/items/created_at to the response with the 200 status

added the optional property items/logs/items/dataplane_process_id to the response with the 200 status

added the optional property items/logs/items/new_state to the response with the 200 status

added the optional property items/logs/items/previous_state to the response with the 200 status

endpoint added