Changes to Query Margin Account's Open Orders (USER_DATA)

added the required property items/selfTradePreventionMode to the response with the 200 status

for the query request parameter recvWindow, the format changed from no format to int64

for the query request parameter timestamp, the format changed from no format to int64

the response property code became required for the status 400

the response property code became required for the status 401

the response property items/clientOrderId became required for the status 200

the response property items/cummulativeQuoteQty became required for the status 200

the response property items/executedQty became required for the status 200

the response property items/icebergQty became required for the status 200

the response property items/isIsolated became required for the status 200

the response property items/isWorking became required for the status 200

the response property items/orderId became required for the status 200

the response property items/origQty became required for the status 200

the response property items/price became required for the status 200

the response property items/side became required for the status 200

the response property items/status became required for the status 200

the response property items/stopPrice became required for the status 200

the response property items/symbol became required for the status 200

the response property items/time became required for the status 200

the response property items/timeInForce became required for the status 200

the response property items/type became required for the status 200

the response property items/updateTime became required for the status 200

the response property msg became required for the status 400

the response property msg became required for the status 401