fix(lbank): add `market.amount.min`
fix(lbank): add `market.amount.min`

Lbank api has `minTranQua` provided, while it is not used by ccxt for now.

API: https://api.lbank.info/v1/accuracy.do
docs: https://docs.lbkex.net/en/#trading-pairs
> The doc is for v2, but they have the same meaning, so it can be a referrence.
ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt