Changes to Kline/Candlestick Data

added the new optional query request parameter timeZone

added the new enum value 1s to the query request parameter interval

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

for the query request parameter limit, the format changed from no format to int32

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

the items response's property type changed from no type to array for status 200

the response property code became required for the status 400

the response property msg became required for the status 400