Non-upstreamed drivers from NetBSD

[nia]

Hello, I was asked about the x.org drivers NetBSD
is maintaining a while ago.  Here is the list.
I think we're quite happy to continue maintaining these,
but an external developer was interested in upstreaming them.

All of the code is under the X11 license and unlikely
to compile on non-NetBSD without a little patching,
at the very least due to using wscons-specific ioctls.

This is the most important one:

xf86-input-ws
Input driver for mice, touchscreens, and touchpads
shared with OpnBSD
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-input-ws

Most of this hardware is quite old and hard to find:

xf86-video-ag10e
"accelerated driver for Fujitsu AG-10e graphics boards"
(SBus-based device)
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-ag10e/dist

xf86-video-crime
"accelerated driver for the CRIME rendering engine found in SGI O2
workstations"
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-crime/dist

xf86-video-igs
"a driver for IGS CyberPro 2010 graphics controllers"
(apparently used on StrongARM-based Digital DNARD machines)
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-igs/dist

xf86-video-mgx
Southland Media MGX framebuffer driver (Sun hardware)
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-mgx/dist

xf86-video-ngle
"a driver for HP's NGLE family of graphics chips"
(used on PA-RISC hardware)
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-ngle/dist

xf86-video-pnozz
SBus Weitek P9100 driver
"this driver has been tested on SPARCbook 3GX and 3TX,
it supports full acceleration in 8, 16 and 24 bit colour"
https://github.com/NetBSD/xsrc/tree/trunk/external/mit/xf86-video-pnozz/dist