merge xf86-video-nouveau 1.0.18

merge xf86-video-nouveau 1.0.16.

merge xf86-video-amdgpu-1.3.0, xf86-video-ati-7.9.0,
xf86-video-nouveau-1.0.15, and xf86-video-openchrome-0.6.0.

include xorg-server.h which is normally included by config.h.

(this change isn't a candidate for upstream.)

initial import of xf86-video-nouveau-1.0.12

initial import of xf86-video-nouveau-1.0.11