[aur-general] moving the cross32 chain into community

heftig and me thought it would be convenient to have a cross32 chain in community in order to more easily and cleanly (hurr hurr, cross32 and clean in the same sentence!) build lib32 packages and to enable building of wine-wow64 (mail incoming). This would include: cross32-binutils, cross32-gcc, lib32-glibc-devel from AUR. Before making this move I wanted to gather some opinions because I know some people really, really hate lib32, bin32 and cross32 and love chroots to death. -- Sven-Hendrik