[arch-multilib] Wayland support in lib32-sdl2, VDPAU support in lib32-mesa

Hi guys, I'd like to add support for wayland in lib32-sdl2; for that I need to push lib32-wayland and build libwayland-egl.so in lib32-mesa. While modifying lib32-mesa, I noticed it now had VDPAU support enabled by default, and it needs to be explicitely disabled to successfully compile. Thought I might as well push lib32-libvdpau and build lib32-mesa against it since it can prove useful for lib32-flashplugin in steam for example. lib32-wayland and lib32-libvdpau PKGBUILDs and modifications to lib32-mesa are ready to go (merely ported what already existed in the regular PKGBUILDS). Is there any objection to those additions? Cheers, -- Maxime