Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/FSO.Server.Protocol/Voltron/Packets/ChatMsgPDU.cs

@@ -0,0 +1,38 @@
+using FSO.Common.Serialization;
+using Mina.Core.Buffer;
+using FSO.Server.Protocol.Voltron.Model;
+
+namespace FSO.Server.Protocol.Voltron.Packets
+{
+    public class ChatMsgPDU : AbstractVoltronPacket
+    {
+        public bool EchoRequested;
+        public Sender Sender;
+        public byte Badge;
+        public byte Alertable;
+        public string Message;
+
+        public override void Deserialize(IoBuffer input, ISerializationContext context)
+        {
+            EchoRequested = input.Get() == 0x01;
+            Sender = GetSender(input);
+            Badge = input.Get();
+            Alertable = input.Get();
+            Message = input.GetPascalString();
+        }
+
+        public override VoltronPacketType GetPacketType()
+        {
+            return VoltronPacketType.ChatMsgPDU;
+        }
+
+        public override void Serialize(IoBuffer output, ISerializationContext context)
+        {
+            output.Put(EchoRequested ? (byte)1 : (byte)0);
+            PutSender(output, Sender);
+            output.Put(Badge);
+            output.Put(Alertable);
+            output.PutPascalString(Message);
+        }
+    }
+}