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/Electron/Packets/BulletinResponse.cs

@@ -0,0 +1,90 @@
+using FSO.Common.Serialization;
+using FSO.Files.Formats.tsodata;
+using FSO.Server.Protocol.Electron.Model;
+using Mina.Core.Buffer;
+using System.IO;
+
+namespace FSO.Server.Protocol.Electron.Packets
+{
+    public class BulletinResponse : AbstractElectronPacket, IActionResponse
+    {
+        public BulletinResponseType Type;
+        public BulletinItem[] Messages = new BulletinItem[0];
+        public string Message;
+        public uint BanEndDate;
+
+        public bool Success => Type == BulletinResponseType.SUCCESS || Type == BulletinResponseType.SEND_SUCCESS || Type == BulletinResponseType.MESSAGES;
+        public object OCode => Type;
+
+        public override void Deserialize(IoBuffer input, ISerializationContext context)
+        {
+            Type = input.GetEnum<BulletinResponseType>();
+            var numMessages = input.GetInt32();
+            Messages = new BulletinItem[numMessages];
+            for (int j = 0; j < numMessages; j++)
+            {
+                var length = input.GetInt32();
+                var dat = new byte[length];
+                for (int i = 0; i < length; i++)
+                {
+                    dat[i] = input.Get();
+                }
+
+                using (var str = new MemoryStream(dat))
+                {
+                    Messages[j] = new BulletinItem(str);
+                }
+            }
+            Message = input.GetPascalVLCString();
+            BanEndDate = input.GetUInt32();
+        }
+
+        public override ElectronPacketType GetPacketType()
+        {
+            return ElectronPacketType.BulletinResponse;
+        }
+
+        public override void Serialize(IoBuffer output, ISerializationContext context)
+        {
+            output.PutEnum(Type);
+            output.PutInt32(Messages.Length);
+            foreach (var msg in Messages)
+            {
+                byte[] dat;
+                using (var str = new MemoryStream())
+                {
+                    msg.Save(str);
+                    dat = str.ToArray();
+                }
+                output.PutInt32(dat.Length);
+                foreach (var b in dat)
+                    output.Put(b);
+            }
+            output.PutPascalVLCString(Message);
+            output.PutUInt32(BanEndDate);
+        }
+    }
+
+    public enum BulletinResponseType
+    {
+        MESSAGES,
+        SEND_SUCCESS, //returns message you sent, with dbid
+        SUCCESS,
+        SEND_FAIL_NON_RESIDENT,
+        SEND_FAIL_BAD_PERMISSION,
+        SEND_FAIL_INVALID_LOT,
+        SEND_FAIL_INVALID_MESSAGE,
+        SEND_FAIL_INVALID_TITLE,
+        SEND_FAIL_GAMEPLAY_BAN,
+        SEND_FAIL_TOO_FREQUENT,
+        SEND_FAIL_JUST_MOVED,
+        FAIL_MESSAGE_DOESNT_EXIST,
+        FAIL_NOT_MAYOR,
+        FAIL_CANT_DELETE,
+        FAIL_ALREADY_PROMOTED,
+        FAIL_BAD_PERMISSION,
+
+        CANCEL = 0xFE,
+        FAIL_UNKNOWN = 0xFF
+    }
+}