* Add separate variant selectors for Cyrillic Capital En/Er (`VXAA`, `VXAB`).
* Optimize glyph for VERTICAL LINE WITH MIDDLE DOT (`U+2327`).
* Add characters:
  - BLACK-LETTER CAPITAL H (`U+210C`) (#714).
  - BLACK-LETTER CAPITAL I (`U+2111`) (#714).
  - BLACK-LETTER CAPITAL R (`U+211C`) (#714).
  - BLACK-LETTER CAPITAL Z (`U+2128`) (#714).
  - BLACK-LETTER CAPITAL C (`U+212D`) (#714).
  - LATIN SMALL LETTER BLACKLETTER E (`U+AB32`) (#2443).
  - LATIN SMALL LETTER BLACKLETTER O (`U+AB3D`) (#2443).
  - LATIN SMALL LETTER BLACKLETTER O WITH STROKE (`U+AB3E`) (#2443).
  - MATHEMATICAL FRAKTUR CAPITAL E (`U+1D508`) (#444).
  - MATHEMATICAL FRAKTUR CAPITAL G (`U+1D50A`) (#444).
  - MATHEMATICAL FRAKTUR CAPITAL J (`U+1D50D`) (#444).
  - MATHEMATICAL FRAKTUR SMALL E (`U+1D522`) (#444).
  - MATHEMATICAL FRAKTUR SMALL O (`U+1D52C`) (#444).