Added standard InChi key & string for Carbon Dioxide
Added standard InChi key & string for Carbon Dioxide

Values obtained using IUPAC winchi-1 software from Molfile: https://www.ebi.ac.uk/chebi/searchId.do?chebiId=16526
henningjp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp,henningjp/CoolProp,henningjp/CoolProp,CoolProp/CoolProp