We currently try to spawn 2 fibers [qubes_updated] and [listener] per clients
and we already finalise them correctly if the client is disconnected. However,
the Lwt.async is localized into add_client instead of where we attach a
finalisers for these tasks. The first objective of this patch is to be sure that
the Lwt.async is near where we registerd cancellation of these tasks.
The second part is to localize the global clients to avoid the ability to
read/write on it somewhere else. Only Dispatcher.watch_clients uses it - so it
corresponds to a free variable of the Dispatcher.watch_clients closure.
- merge router+uplink+client_net+firewall into a single dispatcher file
- watch qubesDB for netvm update
- dynamic netvm should works
- without netvm (but command line options) forward packet to a client, and warn the user if the "netvm" is not connected
- apply ocamlformat
