Changes to Open a WisdomTree cash subscription

added the optional property error/authorization to the response with the 400 status

added the optional property error/authorization to the response with the 401 status

added the optional property error/authorization to the response with the 403 status

added the optional property error/authorization to the response with the 409 status

added the optional property error/authorization to the response with the 503 status

added the optional property error/authorization to the response with the default status

added the optional property transaction/controls to the response with the 200 status

added the required property transaction/swap/trade_booked to the response with the 200 status

added the optional property transaction/swap to the response with the 200 status

added the optional property transaction/estimated_execution_ts to the response with the 200 status

added the optional property transaction/execution to the response with the 200 status

added the optional property transaction/offramp_amounts to the response with the 200 status

added the optional property transaction/onramp_amounts to the response with the 200 status

added the optional property transaction/ramp_fee_returns to the response with the 200 status

endpoint added