Bitcoin Volume from Biggest Exchanges Together

English description:
With this script you can see BTC to Fiat/Stable/Contracts together on one volume chart:
- Fiat exchanges: Bitfinex, Coinbase, Bitstamp, Kraken, Gemini, Bittrex
- Stable coins exchanges (USDT for now): Binance, Poloniex, Bitterx
- Contract exchange: Bitmex

Polish description:
Dzięki temu skryptowi możesz wyświetlić na jedym wykresie wolumen BTC do Fiato/Stable coinów/Kontraktów:
- Giełdy z parami do walut fiducjarnych/Fiat: Bitfinex, Coinbase, Bitsamp, Kraken, Gemini, Bittrex
- Giełdy z parą do Stable-coinów(USDT): Binance, Poloniex, Bittrex
- Giełda z kontraktami terminowymi: Bitmex

Versionshinweise:

Few exchanges/pairs added:
- Okcoin (BTC/USD)
- Hitbtc (BTC/USDT)
- Huobi (BTC/USDT)
- Deribit (BTC Perpetual Futures Contracts)
- Binance (TetherUS Perpetual Futures)

Also the group of perpetual contracts (Bitmex, Deribit, Binance) can be turn on/off with one click now. By default Perpetual Contract's volume is off.

Versionshinweise:

Added:
- Simple Moving Average of Volume with different collors wheter its rising or falling
- Turn ON/OFF possible
- Setting SMA Length possible