Add project files.

Esiur/Engine/AsyncBag.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Esiur.Engine
+{
+    public class AsyncBag<T>:AsyncReply
+    {
+        //List<AsyncReply> replies = new List<AsyncReply>();
+        //List<T> results = new List<T>();
+        Dictionary<AsyncReply, T> results = new Dictionary<AsyncReply, T>();
+        int count = 0;
+        bool sealedBag = false;
+
+        public void Then(Action<T[]> callback)
+        {
+            base.Then(new Action<object>(o => callback((T[])o)));
+        }
+
+        /*
+        public void Trigger(T[] result)
+        {
+            Trigger((object)result);
+        }
+        */
+
+        public void Seal()
+        {
+            sealedBag = true;
+
+            if (results.Count == 0)
+                Trigger(new T[0]);
+
+            for(var i = 0; i < results.Count; i++)
+            //foreach(var reply in results.Keys)
+                results.Keys.ElementAt(i).Then((r) => {
+                    results[results.Keys.ElementAt(i)] = (T)r;
+                    count++;
+                    if (count == results.Count)
+                        Trigger(results.Values.ToArray());
+                });
+        }
+
+        public void Add(AsyncReply reply)
+        {
+            if (!sealedBag)
+                results.Add(reply, default(T));            
+        }
+
+        public AsyncBag()
+        {
+
+        }
+
+        /*
+        public AsyncBag(T[] result)
+        {
+            this.result = result;
+        }
+        */
+    }
+}