useAwards Bittrex

[Fluorz]

A boolean in config to use bittrex awards to avoid fees.

Need to be implemented here : https://github.com/TeamWertarbyte/crypto-trading-bot/blob/235120abbe806537c5d68a1d05107134e5d57801/src/modules/api/BittrexApi.ts

Doc : https://bittrex.github.io/api/v3#operation--orders-post