[Bitfinex] Update resource file
[Bitfinex] Update resource file

  - See: https://api.bitfinex.com/v1/symbols_details
    From post: https://www.bitfinex.com/posts/226

douggie/XChange,TSavo/XChange,stachon/XChange,andre77/XChange,timmolter/XChange,Panchen/XChange,ww3456/XChange,chrisrico/XChange,LeonidShamis/XChange