Implement tell queues

Default queue size 20 (World:TellQueueSize)
This doe not play well with multiple sessions and a toon crashes and relogs
Normal tells have issues as well.

zone/worldserver.h

@@ -57,6 +57,8 @@ public:
 	void HandleLFGMatches(ServerPacket *pack);
 	void HandleLFPMatches(ServerPacket *pack);
 
+	void RequestTellQueue(const char *who);
+
 private:
 	virtual void OnConnected();