Fixed an error in the netcode that would cause the client to d/c on partial packets. Set buffer size to 0xFFFF due to disconnect on really large packets (ie gm packet). Implemented support ticket packets.

FFXIVClassic Map Server/packets/receive/supportdesk/GMSupportTicketPacket.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FFXIVClassic_Map_Server.packets.receive.supportdesk
+{
+    class GMSupportTicketPacket
+    {
+        public bool invalidPacket = false;
+        public string ticketTitle, ticketBody;
+        public uint ticketIssueIndex;
+        public uint langCode;
+
+        public GMSupportTicketPacket(byte[] data)
+        {
+            using (MemoryStream mem = new MemoryStream(data))
+            {
+                using (BinaryReader binReader = new BinaryReader(mem))
+                {
+                    try
+                    {
+                        langCode = binReader.ReadUInt32();
+                        ticketIssueIndex = binReader.ReadUInt32();
+                        ticketTitle = Encoding.ASCII.GetString(binReader.ReadBytes(0x80)).Trim(new[] { '\0' });
+                        ticketBody = Encoding.ASCII.GetString(binReader.ReadBytes(0x800)).Trim(new[] { '\0' });
+                    }
+                    catch (Exception){
+                        invalidPacket = true;
+                    }
+                }
+            }
+        }
+
+    }
+}