Issues/15 auto reconnect to producer node

[0x20h]

So, here's the TODOs:

• create and trigger an event when fetching one or more new jobs
• create and trigger an event after one or more new jobs have been
• create functionality to store a msg/sec by node
• create functionality to update the statistics (by node)
• create functionality to retrieve the node that we read most from at the moment
• create functionality to switch the connection if necessary before retrieving new jobs

I decided to implement this feature as a subscriber to the new events, so it's up to the user to enable this feature by adding the subscriber to the client.