Add multilib support (lib32-[package] and libx32-[package])

[kuznix2011]

this may make/install lib32 and x32 packages (from Multilib LFS and gaming lfs, also for lfs and slfs)

[HaroldMth]

Hi, Thanks for making this issue, i never expected someome using this tool, i just updated it for myself over weeks and days.
About the issue, i'll get it fixed as soon as possible.

[kuznix2011]

create scripts like adopt_mlfs.sh (multilib lfs, if have lib32 in root), adopt_glfs.sh (gaming lfs, if have lib32 in root, some packages didnt have in any *LFS expect GLFS)
also create adopt_slfs.sh, supplemental lfs, package didnt not found in any *LFS expect for SLFS