whitelist LibreBarcode on a few tests
whitelist LibreBarcode on a few tests

According to https://github.com/graphicore/librebarcode/issues/3
(issue #1534)

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