Enable Pool Addres Calculation

[bonedaddy]

// encodeState encodes the state as with abi.encode() in the smart contracts.
func computePoolAddress(a, b []byte) ([]byte, error) {
    args := abi.Arguments{
        {Type: abiUint256},
        {Type: abiUint256},
    }
    enc, err := args.Pack(
        a,
        b,
    )
    // now you have abi.encode(a,b)
    h := crypto.Keccak256(enc)
    // now you have keccak(abi.encode(a,b))
    // return the last 20 bytes
    return h[12:]
}