Add support for virtio-gpu-rutabaga
QEMU 8.2 added support for virtio-gpu-rutabaga: https://www.qemu.org/2023/12/20/qemu-8-2-0/
This is supposedly a much more modern and better maintained alternative to virtio-gpu-gl. It needs a few things to work. Here's a description of what the build could look like: https://linaro.atlassian.net/wiki/spaces/ORKO/pages/28985622530/Building+QEMU+with+virtio-gpu+and+rutabaga+gfx
We need new packages for rutabaga and gfxstream. See also https://crosvm.dev/book/appendix/rutabaga_gfx.html. I'm not sure we need AEMU. We should also have gfxstream-guest and sommelier.
It looks fairly straight-forward.