Log Message:
harfbuzz: update to 5.0.0.

Overview of changes leading to 5.0.0
Saturday, July 23, 2022
====================================
- Support fonts with more than 65535 glyphs in “GDEF”, “GSUB”, and “GPOS”
  tables. This is part of https://github.com/be-fonts/boring-expansion-spec to
  extend OpenType in a backward-compatible way.
  (Behdad Esfahbod, Garret Rieger)
- Complete support for more than 65535 glyphs in “glyf” table that started in
  4.0.0 release. Part of boring-expansion-spec. (Behdad Esfahbod)
- Support version 2 of “avar” table. Part of boring-expansion-spec.
  (Behdad Esfahbod)
- Fix mark attachment on multiple substitutions in some cases.
  (Behdad Esfahbod)
- Fix application of “calt”, “rclt”, and “ccmp” features to better match
  Uniscribe behaviour with some Arabic fonts. (Behdad Esfahbod)
- Improvement to interaction between multiple cursive attachments.
  (Behdad Esfahbod)
- Improve multiple mark interactions in Hebrew. (Behdad Esfahbod)
- Implement language-specific forms in AAT shaping. (Behdad Esfahbod)
- Fix variation of “VORG” table. (Behdad Esfahbod)
- Support for specific script tags to be retained in the subsetter, and add
  “--layout-scripts” option to “hb-subset” tool. (Garret Rieger)
- Accept space as delimiter for --features/--variations in command line tools.
- Improve subsetting of “COLR” table. (Qunxin Liu)
- Improved fuzzing coverage for ot-math API. (Frédéric Wang)
- Fix “kern” table version 2 (AAT) sanitization on 32-bit systems.
  (Behdad Esfahbod)
- Allow negative glyph advances from “graphite2” shaper. (Stephan Bergmann)
- Implement loading (color) bitmap fonts with hb-ft. (Behdad Esfahbod)
- Fix regression in hb-ft when changing font size. (Behdad Esfahbod)
- Fix build on GCC < 7. (Kleis Auke Wolthuizen)
- Dynamically load dwrite.dll on windows if “directwrite” shaper is enabled.
  (Luca Bacci)
- Provide a single-file harfbuzz-subset.cc file for easier alternate building
  of hb-subset library, similar to harfbuzz.cc. (Khaled Hosny)

- New API
+HB_SUBSET_SETS_LAYOUT_SCRIPT_TAG
+hb_language_matches()