Please add a math lang/orthography/whatever
As math font blocks become more common applications need to select them (and the correct block for a specific font, not jut a unified generic)
Please add a math lang/orthography/whatever so apps can ask "STIX, with math" and get STIX Math data, "DejaVu Serif, with math" and get "TeX Gyre DejaVu Math" data, "GFS NeoHellenic, with math" and get GFS NeoHellenic Math data
Issue #200 will remove the separate listing of math blocks in font lists, so correct selection in important