Add project files.

Framework/Core/LifeCycles/IDisposer.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace TheXamlGuy.Framework.Core
+{
+    public interface IDisposer
+    {
+        void Add(object subject, params object[] objects);
+
+        TDisposable Replace<TDisposable>(object subject, IDisposable disposer, TDisposable replacement) where TDisposable : IDisposable;
+
+        void Remove(object subject, IDisposable disposer);
+
+        void Dispose(object subject);
+    }
+}