replace legacy api for symbols/symbolsDetails

[gasolin]

To help reduce platform load, please use https://api.bitfinex.com/v2/conf/pub:list:currency,pub:map:currency:label,pub:map:currency:unit,pub:list:pair:exchange

instead of v1 legacy request in https://github.com/bitfinexcom/bfx-api-node-rest/blob/master/lib/rest2.js#L858

[f3rno]

@gasolin this would change the returned data for symbol details; currently this is the structure:

  {
    "pair": "eususd",
    "price_precision": 5,
    "initial_margin": "30.0",
    "minimum_margin": "15.0",
    "maximum_order_size": "30000.0",
    "minimum_order_size": "2.0",
    "expiration": "NA",
    "margin": false
  }

Can you confirm this is OK?

[gasolin]

I think its not right to return different things that broken the existing integration.

If provide equivalent through v2 API is not possible, maybe it worths to create an alternative v2 API (if make sense)

[f3rno]

@gasolin makes sense, I will forward internally

[f3rno]

Pending backend update.