Commit 25a6514887ebe899bd4ede1e283e067f97e15def

Behdad Esfahbod 2023-06-03T18:26:36

[subset] Allow adding table directly from subset() And do it for hmtx. Going to revert since it slows things down. Apparently the serializer buffer is in caches and hot, so faster to write to and copy even.