Bitmex

• Bitmex realtime orderbook, realtime trade, candlestick rest.
• Refactor using websocket abstract class for all exchanges.

Binance private request and stream, jest test

Binance private api

• Private request for account information
• Private user data stream

Binance candlestick parallel multi-resolutions

Binance can now subscribe and unsubscribe multi-resolutions (1min, 5min, 1hour...) candlestick separately at the same time