- support set live migrate bandwidth
- support cancel migrate
- live migrate enable multifd
- cancel set live migrate max downtime in init live migrate
- save and sync guest desc and start script on sync config
- init machine pci addresses on load guest desc
- load memory devices for guests not init pci addresses
- attach network set upscript and downscript
- add a guest launcher for redirect qemu stdout/stderr
- start monitor on guest script start
- fix guest hotplug cpu and mem not update desc