[Request] Implement a getter-interface for events that receives Peer from an event

[freedom1b2830]

Events that are inherited from BaseEvent implement TorrentEvent which allows you to get the torrent id.
It would be great to also receive bt.net.Peer from events.
My case:
I'm writing a tracker.
I need to record events to a file, there is a convenient way to get the id: use the method from TorrentEvent.
But when I want to get Peer from an event, then I have to process each event separately through

if(obj instanceof PeerDiscoveredEvent casted){
      return casted.getPeer();
}else if(obj instanceof PeerDisconnectedEvent casted){
      return casted.getPeer();
}
else if(obj instanceof PeerConnectedEvent casted){
      return casted.getPeer();
}
return null;//for example

version:1.10