Add project files.

UI/WPF/Extensions/MarkupExtensions.cs

@@ -0,0 +1,12 @@
+using System.Windows.Data;
+
+namespace TheXamlGuy.UI.WPF
+{
+    public static class MarkupExtensions
+    {
+        public static Binding ToBinding(this object value)
+        {
+            return value is Binding binding ? binding : new Binding() { Mode = BindingMode.OneWay, Source = value };
+        }
+    }
+}