geom_uncompress

[Aleksandr Rybalko]

Hi everybody,

some time ago i already introduce geom_uncompress, that must replace
geom_uzip with additional ability to use lzma for fs compression.
IIRC, if we have 11MB ISO with MIPS32 rootfs, then we will have ~5MB
uzip or ~3MB of ulzma.

So i post it again, and hope to see more interest to it :)

Patch located here:
http://my.ddteam.net/files/geom_uncompress_2011-12-23.patch

one note: correct please sys/conf/files diff by hands, since i have
many things in it. :)

-- 
Aleksandr Rybalko <ray at ddteam.net>