Add project files.

Esiur/Net/HTTP/HTTPFilter.cs

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+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading;
+using System.Net;
+using System.Collections;
+using System.Collections.Generic;
+using Esiur.Data;
+using Esiur.Engine;
+using Esiur.Resource;
+
+namespace Esiur.Net.HTTP
+{
+
+    public abstract class HTTPFilter : IResource
+    {
+       public Instance Instance
+       {
+            get;
+            set;
+       }
+
+        public event DestroyedEvent OnDestroy;
+
+        public abstract AsyncReply<bool> Trigger(ResourceTrigger trigger);
+
+        /*
+        public virtual void SessionModified(HTTPSession session, string key, object oldValue, object newValue)
+        {
+
+        }
+
+        public virtual void SessionExpired(HTTPSession session)
+        {
+
+        }
+        */
+
+        public abstract bool Execute(HTTPConnection sender);
+
+        public virtual void ClientConnected(HTTPConnection HTTP)
+        {
+            //return false;
+        }
+
+        public virtual void ClientDisconnected(HTTPConnection HTTP)
+        {
+            //return false;
+        }
+
+        public void Destroy()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}