Normalise precision in market structure

[WillPCowan]

Operating System

No response

Programming Languages

Python 3.11

CCXT Version

4.2.99

Description

Currently precision values (for quantity/price) in market structures are not normalised. For example for the precision of 1e-4, this could be represented with the form '4' or '0.0001' depending on the exchange.

E.g. Bybit ETH/USDT (using decimal form)
'precision': {'amount': 1e-05, 'price': 0.01, 'cost': None, 'base': None, 'quote': None}

E.g. Binance ETH/USDT (using integer form)
'precision': {'amount': 4, 'price': 2, 'cost': None, 'base': 8, 'quote': 8}

It'd be better to use the form '0.0001' so that when e.g. min quantity is something like 1000KRW (e.g. Upbit ETH/KRW) then there is no issue.

Code