ZB: borrowMargin - handleMarginModeAndParams
ZB: borrowMargin - handleMarginModeAndParams

### borrowMargin:
```
node examples/js/cli zb borrowMargin USDT 20 BTC/USDT '{"marginMode":"isolated"}'

zb.borrowMargin (USDT, 20, BTC/USDT, [object Object])
2022-08-20T01:18:29.163Z iteration 0 passed in 907 ms

{
  id: undefined,
  currency: 'USDT',
  amount: 20,
  symbol: 'BTC/USDT',
  timestamp: undefined,
  datetime: undefined,
  info: { code: '1000', message: '操作成功' }
}
2022-08-20T01:18:29.163Z iteration 1 passed in 907 ms
```

ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt