[Feature Request] - lock session when performing some actions

[devlikepro]

Right now when a session goes in "restart" loop (due to network issues or 30 minute timeout for NOWEB) - all requests to the session fail. We need to take care of this internally:

1. When session.engine restart (internally) - block all requests (wait until it got restarted)
2. When a session restarting using /restart or similar endpoint - block it as well
3. When perform some API calls (like sending message) - shared lock the session with some timeout (so we can restart it as well)
4. May be when we perform some actions against the session during it's initialization (STARTING => WORKING) we could also postpone requests to it