Home should not always be set by default.
In the UI we can suggest it, but it catches a lot of state you might not
want to back up.
The default has been moved to be automatically set by vm's in `vm.nix`.
- add python modules for qemu protocols: QMP (hardware interactions) and QGA (guest service interaction)
- refactor state directory: remove name from path (already contains url)
- add impure vm test for basic qmp interaction
- simplify existing vm persistance test (factor out shared code)
- integrate graceful shutdown into GUI
the GUI integration still needs to be improved later:
- add fallback in case system doesn't react to powerdown button
- shutdown GUI switch fails if VM hasn't been started yet, and then remains in a wrong position
Done:
- move vm inspect attrs from system.clan.vm.config to clanCore.vm.inspect. This gives us proper name and type checking. everything in `system` is basically freeform, so the previous option definitions were never enforced
- when running VMs, mount state directory from ~/.config/clan/vmstate/{...} from the host to /var/vmstate inside the vm
- create bind mount inside the VM from /var/vmstate/{folder} to / for all folders defined in clanCore.state.<name>.folders
TODOs:
- make sure directories in ~/.config/clan/vmstate never collide (include hash of clan-url, etc.)
- port impure test to python
