Prevent further things from clients who dont handshake

- The player will only finish the handshake once they spawn their player, a normal client would always do this eventually.

- They cannot chat, even if they request world data but just not spawn their player.

- Other clients will not be notified of their join/leave in both cases (dont request WD or do but dont spawn)

- And most importantly, they do not show on the in game player list but still show on the server console /playing cmd.

TShockAPI/Commands.cs

@@ -5363,7 +5363,7 @@ namespace TShockAPI
 
 			foreach (TSPlayer ply in TShock.Players)
 			{
-				if (ply != null && ply.Active)
+				if (ply != null && ply.Active && ply.FinishedHandshake)
 				{
 					if (displayIdsRequested)
 						if (ply.Account != null)