leaderboard of consolidated listener stats should show path as well

The consolidated listener stats has a leaderboard section which sorts the leaders by cumulative processTime. This is useful information, however the className of the listener does not always allow to identify the culprit. Consider Sling's JcrResourceListener - which is created for each (group of) ResourceChangeListener. The leaderboard will only show (a number of) JcrResourceListener as the className and not which ResourceChangeListener is underneath.

Ideally each listener could provide more details as to who is 'behind' itself - similarly to the EventListenerMBean.getToString. But atm that sometimes produces rather a lot of output.

A simpler way might be to just add a column paths - that would show the same as in the ListenerStats table.