#196 Add support for LZX archive format (extraction)

[ami_stuff]

Hi,

Maybe it's possible to add LZX extraction code to 7Zip. This is a second after LhA most popular archive format used on Amiga.

Here are source codes for unpackers:

http://aminet.net/package/util/arc/UnLZX-MorphOS
http://aminet.net/package/misc/unix/unlzx.c
http://aminet.net/package/util/arc/UnLZX2

I can upload a test *.lzx archives if needed.

Regards