Improve performance of bundle events processing in async listener

Async listener should not iterate on events when receiving EventBunde

public void handleEvent(EventBundle events) {
for (Event event : events)

}

For async listener events are ReconnectedEventBundle and iterating on them will reconnect all events, this means opening a session and create document model and context for each event (see ReconnectedEventBundleImpl.getReconnectedEvents())

This is very expensive and useless if the listener is not interested in any event in the bundle.

A first optimisation may be to use containsEventName in the listener to check if the interesting event is present in the bundle,
that should not reconnect any events.