[tex4ht] Automatic HTF file generation

[Michal Hoftich]

>     > Encoding vector is always embedded in Type1 font.
>
> Usually the /Encoding vector in a given Type 1 is only a subset of the
> characters available in the font. The only way to know what is there is
> to parse the entire file. But there are lots of utilities in this area;
> I suspect something out there will dump a list of characters from a pfb. -k
>

I will parse the .pfb files only when no enc is available. We will see
how it is useful. Worse thing is large number of non-standard glyph
names used in TeX fonts. We need to map each glyph to Unicode, it is
not always easy to find a correct mapping.

Best,
Michal