add prebuilt fractions glyphconstruction

0293ebce

7 file(s) changed

DunbarTallCondensed-Ultra.ufo: lib.plist; glyphs/guillemotleft.glif; glyphs/guillemotright.glif; glyphs/onehalf.glif; glyphs/onequarter.glif; glyphs/threequarters.glif