Tamzen-1.11.5

• GH-7: Generate fonts in TTF format using bitsnpicas.
  Thanks to @vasili111 and VileR for sharing this solution.

• GH-25: Generate fonts in OTB format using fonttosfnt.
  Thanks to @j-n-f for showing how to generate OTB files.

• Drop dfont (macOS), fnt (Windows), and pt3 (TeX) fonts:
  they are made obsolete by the new TTF (TrueType) fonts.