generalizing the script to work with any collection folder
generalizing the script to work with any collection folder

issue #1157

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