We don't seem to notice Faustina-Italic.glyphs is italic

[rsheeter]

$ python resources/scripts/ttx_diff.py 'https://github.com/Omnibus-Type/Faustina#sources/Faustina-Italic.glyphs' --compare gftools --config ~/.fontc_crater_cache/Omnibus-Type/Faustina/sources/config.yaml

# OS/2 fsSelection doesn't think we're italic
# head macStyle doesn't think we're italic
# name 2 is Regular not Italic, causing name 1 to be Faustina Light Italic instead of Faustina Light
# STAT elided fallback name is Regular rather than Italic

I see glyphsLib code that seems to take italic'ness from italicAngle, perhaps we are missing that? - e.g. https://github.com/googlefonts/glyphsLib/blob/74c63244fdbef1da540d646b0784ae6d2c3ca834/Lib/glyphsLib/builder/names.py#L25

[rsheeter]

Fixed by #1158