Ported over the network code from the map server. A lot of backedlogged changes are here as well.

FFXIVClassic_Lobby_Server/ClientConnection.cs

@@ -22,6 +22,7 @@ namespace FFXIVClassic_Lobby_Server
         public byte[] buffer = new byte[0xffff];
         public CircularBuffer<byte> incomingStream = new CircularBuffer<byte>(1024);
         public BlockingCollection<BasePacket> sendPacketQueue = new BlockingCollection<BasePacket>(100);
+        public int lastPartialSize = 0;
 
         //Instance Stuff
         public uint currentUserId = 0;