merge xf86-input-elographics 1.4.4, xf86-video-chips 1.5.0,
xf86-video-nv 2.1.23, xf86-video-savage 2.4.1,
xf86-video-siliconmotion 1.7.10, xf86-video-vboxvideo 1.0.1.

Rename vboxvideo.h -> vboxvideo_drv.h, so that this can be built on
a host with a case-insensitive + case-preserving file system.

initial import of xf86-video-vboxvideo-1.0.0