[Freetype] FreeType 2 and gzipped font files

[Juliusz Chroboczek]

A first draft of a patch to allow FreeType 2 (current CVS) to read
gzipped font files is available from

http://www.pps.jussieu.fr/~jch/software/files/freetype2-gzip-20021019.patch.gz

This patch works by keeping in memory the part of the uncompressed
font file that has already been seen.  The weak point is that
compressed files are detected by filename extension; a cleaner
solution would be to have the stock stream implementations invoke it
when they detect the signature of a gzipped file.

I didn't try to make it optional.

Feel free to include a suitably modified version of this patch in
FreeType if you find it suitable.

Regards,

                                        Juliusz