* add infrastructure to allocate dynamic/transient users and UID ranges, for use in user-namespaced containers, per-seat gdm login screens and gdm guest sessions
* machined: add an API so that libvirt-lxc can inform us about network interfaces being removed or added to an existing machine
* add infrastructure to allocate dynamic/transient users and UID ranges, for use in user-namespaced containers, per-seat gdm login screens and gdm guest sessions
* machined: add an API so that libvirt-lxc can inform us about network interfaces being removed or added to an existing machine