Add support for the `dzn` Vulkan driver
As reported in https://gitlab.archlinux.org/archlinux/archlinux-wsl/-/issues/8, WSL2 recently introduced support for Vulkan through the [`d3d12`](https://gitlab.freedesktop.org/mesa/mesa/-/tree/main/src/gallium/drivers/d3d12) Gallium and [`dzn`](https://gitlab.freedesktop.org/mesa/mesa/-/tree/main/src/microsoft/vulkan) (also known as `microsoft-experimental`) Vulkan drivers.
I'm opening this issue to discuss the possibility to add support for that `dzn` Vulkan driver in our mesa package. As of now, people are relying on [an AUR package](https://aur.archlinux.org/packages/mesa-wsl2-git) for it but, since we now provide an official WSL image, maybe it make sense to support it in our official `mesa` package now? :hugging:
issue