Add minimal winforms example to demonstrate the latest 33.0.0 packages

CefSharp.MinimalExample.WinForms/Controls/ControlExtensions.cs

@@ -0,0 +1,29 @@
+// Copyright © 2010-2014 The CefSharp Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
+
+using System;
+using System.Windows.Forms;
+
+namespace CefSharp.MinimalExample.WinForms.Controls
+{
+	public static class ControlExtensions
+	{
+		/// <summary>
+		/// Executes the Action asynchronously on the UI thread, does not block execution on the calling thread.
+		/// </summary>
+		/// <param name="control">the control for which the update is required</param>
+		/// <param name="action">action to be performed on the control</param>
+		public static void InvokeOnUiThreadIfRequired(this Control control, Action action)
+		{
+			if (control.InvokeRequired)
+			{
+				control.BeginInvoke(action);
+			}
+			else
+			{
+				action.Invoke();
+			}
+		}
+	}
+}