WIP: Adding Qemu VMs

[MalteJ]

• [x] Compiling Qemu and adding to initramfs
• [ ] Check if Qemu is able to run within auraed environment
• [ ] Add API methods to create VMs
• [ ] Start Qemu VMs from auraed
• [ ] Wire up VM's serial console with auraed internal log data streams

[krisnova]

Looking good so far! I added some changes so you might want to rebase now before anything else conflicts!