This is normally statically linked in releases. Lua also needs
some patching in Linux x86 to fix performance issues related
to alignment, will need patching if we want fine-grained threading,
and generally has an odd "build it yourself" design, so let's
just add embed this one. (note: disable PCH for these files
in VC, and don't add lua.c, luac.c, or print.c to the project)
