Changes to Search Canvases

added the new optional query request parameter offset

added the non-success response with the status 402

added the optional property canvases/items/folder to the response with the 200 status

added the optional property canvases/items/template_type to the response with the 200 status

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

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

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

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

added the optional property retryable to the response with the 403 status

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

added the optional property retryable to the response with the 409 status

added the optional property retryable to the response with the 422 status

added the optional property retryable to the response with the 429 status

added the optional property retryable to the response with the 500 status

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