Create a small events list gui in the client

[gioragutt]

Similar to f.e counter strike where you have kill events shown on the top right corner,
Something like that can be good, to show events such as:

• Player joins
• Player disconnects
  In the future there will be more events, such as player kills, npc kills, drop pick ups, etc.

The issue is also marked as server-side as usually these events are broadcast to the clients by the server, and are not inferred by the client via state change diffs,
So someone will have to also work on sending those events in the server side.