[Exchange Management] whitelist HBTC

HBTC’s full name is Huobi BTC, a BTC pegging token on ETH network issued by Huobi.
Now, it has been registered on rainbowbridge and willing to create HBTC<>WBTC stable swap pool on REF.
So, it is time to whitelist it now.
The NEP-141 token addr is: 0316eb71485b0ab14103307bf65a021042c6d380.factory.bridge.near