[cexio] metadata - fixed price scales for fiat and added some missing data
[cexio] metadata - fixed price scales for fiat and added some missing data

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