Add a .gitignore.
Add a .gitignore.

Distrotech/libvdpau,Distrotech/libvdpau,emericg/libvdpau-vp8,emericg/libvdpau-vp8,mosterta/libvdpau,mosterta/libvdpau,Distrotech/libvdpau,mosterta/libvdpau,emericg/libvdpau-vp8