Skip overlapping contour check for variable fonts #65
Description
Copied comment from fonttools/fontbakery@c02825b
This was discussed in #2056
with @madig already. The correct way to approach this issue is to switch off those checks and not do them for variable fonts. Doing the checks then throw them away, is wasting CPU cycles. Not doing the tests also run faster and a better experience for the users. The correct way to switch it off is to put that logic in Fontval to detect variable fonts. There is already examples of such code usage in the ELDC/EBDC table checks where decisions are made based on the presence or absence of another table.