[zmq] Don't take a new port when restart server

[Oleksii Zamiatin]

Currently restarting the service we bind to a new random port each time, so already connected clients have no ability to reconnect to the service by means of KEEP_ALIVE connection.

Purpose: Zmq driver should not manage such kind of reconnects, it should be done by means of underlying ZeroMQ layers.

Possible solution:

When service starts and if it has server-id in the target <Target ... server="server1">:
 - check out this id in redis. (record presence in redis means repetitive runs, otherwise we run for the first time)
 - If the id presents, don't bind to a new random port but
   - get the port from redis record.
 - In case the port was not closed or it is hold by another process
  - bind to a random port as usual.

This solution would work if we don't have conflicting server names inside the same host.