Tool to identify leader and follower nodes

The CSIT tests need a method to capture the current follower and leader nodes. The information should be dumped to the karaf log and/or a file so that it is easy to reference the state along with the accompanying test. The tool would be called to collect the status at that instant of time and then logged. The tests would call the tool periodically to collect the status.

The monitor tool currently displays the leader and follower nodes, but it runs continuously and is not applicable to a running csit.