Closes-Bug: #1391346
      Issue: Storage graphs not seen on huge cluster.
      Fix: Few nodes were added through add_node command and storage
           daemon was not started in the newly added node.
           Wrote code to have the daemon started by add_node command.
           cfg-host info is passed to "add storage node" call.
      Test: Tested on local cluster

Change-Id: I394ea5634af6323846138846d8198cc852f3eddd