Master component hides its status, How to have a better view of its Status ?

Issue

• Fuse doesn't provide a way to check if a route using Master component is master or standby.
• User monitoring uses a custom route policy to check the state of a route and user need to know if the route is supposed to run (master) or not (standby).
• User would like to do something like this

Consumer consumer = route.getConsumer();
if (consumer instanceof MasterConsumer) {
        MasterConsumer master = (MasterConsumer)consumer;
        if (master.isMaster()) {
              // do stuff
        }
}

• MasterComponent might need this method for that

public boolean isMaster() {
   return singleton.isMaster();
}

• Master component state should also be shown in hawtio.