Error and server list packets added. Reserve will send error to client if a character name is take for a server. Code to send out server list on GetCharacters added.

FFXIVClassic_Lobby_Server/dataobjects/World.cs

@@ -11,7 +11,7 @@ namespace FFXIVClassic_Lobby_Server.dataobjects
         public ushort id;
         public string address;
         public ushort port;
-        public ushort unknown;
+        public ushort listPosition;
         public ushort population;
         public string name;
         public bool   isActive;