Add point details in futures account and position

Add more fields in futures ticker

Rename order related functions name in futures API

set `currency_pair` spot order book as required

Fix missing required URL paramter

Releasee 4.5.0

Changelog

- update base URL

Changelog

- Add `volumn_24h_usd` and `volume_24h_btc` in `GET /futures/tickers` response

Merge branch 'develop'