restrict non-ASCII check to nameids 0 and 6 only
restrict non-ASCII check to nameids 0 and 6 only

and add proper check metadata.
(issue #1663)

googlefonts/fontbakery,graphicore/fontbakery,moyogo/fontbakery,googlefonts/fontbakery,moyogo/fontbakery,graphicore/fontbakery,moyogo/fontbakery,googlefonts/fontbakery,graphicore/fontbakery