1 - cmap14 support in get_glyph callback
2 - Use size_t in sanitize?
3 - Move unicode_funcs to buffer
7 - Rename hb_internal_glyph_info_t to hb_ot_glyph_info_t
8 - Add query API for aalt-like features
9 - HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH vs LookupType::... mess
12 - Add hb_ft_create_face()?