Began working on server zone changes.

FFXIVClassic World Server/Packets/WorldPackets/Send/SessionEndPacket.cs

@@ -0,0 +1,24 @@
+using FFXIVClassic.Common;
+using FFXIVClassic_World_Server.DataObjects;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FFXIVClassic_World_Server.Packets.WorldPackets.Send
+{
+    class SessionEndPacket
+    {
+        public const ushort OPCODE = 0x1001;
+        public const uint PACKET_SIZE = 0x24;
+
+        public static SubPacket BuildPacket(Session session)
+        {
+            byte[] data = new byte[PACKET_SIZE - 0x20];
+
+            return new SubPacket(true, OPCODE, 0, session.sessionId, data);
+        }
+    }
+}