[libvirt] RFC: add recreate option to domain events conf

[Nikolay Shirokovskiy]

Hi, all.

  Does it make sense to anybody else that rebooting and resetting
a persistent domain from outside or from inside should bring upon
pending configuration changes? For this purpose we can add another
option to on_reboot and other events, say 'recreate'. From technical
POV qemu has enough capabilities, namely -no-reboot option.

Nikolay