Gate.io: added parse for GateCode transfer
Gate.io: added parse for GateCode transfer

withdraw to GateCode
```
{
    "id": "w22310751",
    "currency": "MANA",
    "address": "",
    "amount": "13",
    "fee": "0",
    "txid": "MANABC9EF10C40D78AE8C2D39948A654 (Get complete code on web')",
    "chain": "",
    "timestamp": "1644523652",
    "status": "BCODE",
    "memo": ""
}
```
redeem from GateCode
```
{
    "id": "b83919493",
    "currency": "MANA",
    "address": "",
    "amount": "13",
    "txid": "gatecode",
    "chain": "",
    "timestamp": "1644523744",
    "status": "DONE",
    "memo": ""
}
```
ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt