Improve Qemu video performance
Created by: PureTryOut
Right now, Qemu doesn't have OpenGL support whatsoever, which causes some issues with Plasma Mobile (and probably future DE's and potential apps developers). I believe we should look into using the QXL video driver for the guest (instead of what we use now, vga I guess?), together with SPICE for viewing the VM.
I use this method right now for a Windows VM I need for work, and although it isn't great, there is basic video acceleration, and it might be enough for app development and Plasma. It also allows for better integration with the host by means of shared clipboard and no locked mouse cursor.
It'll require the user to have installed SPICE on his system, so maybe we can let pmbootstrap check for SPICE first and use vga as a fallback?