Add BTCUSD to the GenesisMarkets ALL Account Types

Since binance has a restriction on the limit order size, it would be handy to have the BTCUSD symbol across all the Account Types, Without knowing the value of BTC in USD, we can not calculate the Minimum Limit order Volume size in the ETH denominated accounts.  

Notional size of 0.001 BTC = USD value. 

The BTCUSD symbol does not need to be available for trading just like the ETHUSD symbol within the ETH accounts. We only need access to this symbols price to complete the proper calculations to determine the minimum limit order size on the non BTC accounts. 

Please add this to the GenesisMarkets platform!