Log Message:
cantarell-fonts: update to 0.301.

0.301:
- Oopsie-release: The last one was missing PostScript names for the new glyphs.
  Only relevant for when extracting text from PDFs where the generator omitted
  the text stream.
- Rounded coordinates of macronbelowcomb.narrow and macroncomb.narrow.case.
  Leftovers from when they were scaled components.
- Internal: Removed stale layers and data, added normalization script to prune
  unnecessary data. import-glyphs.py also imports PostScript names now.

0.300:
- Import Greek glyph set designed by Florian Fecher for GSoC 2018. No kerning,
  might need a slight respacing. Imported anyway because something is better
  than nothing.
- Correct positioning of dotaccentcomb.case.
- Correct mark positioning in caroncomb.case.
- Correct appearance of ustraightstroke in variable font, the overlap became
  visible at smaller, autohinted sizes.
- Correct bar positioning in Ustraightstroke and ustraightstroke
- Correct anchor positioning in Y
- Internal: Consolidate various anchors in composites into the base outline
  glyphs, to reduce the chance they get out sync.
- New appstream translations:
  - Norwegian Bokmal by Kjartan Maraas
  - Bengali (India) by Akarshan Biswas
  - Portuguese by Joao Nuno Matos
  - Japanese by Shinichirou Yamada and sicklylife