Add Samples

* All: Added samples for analyzing internal state. See also the background materials: [Visual Studio Test Tooling Guides - Better Unit Testing with Microsoft Fakes](http://vsartesttoolingguide.codeplex.com/releases/view/102290).
* All: Make the pre-build event passing explicitly the referenced assemblies to generate stub, otherwise build failure will be occurred after GAC registration.
* Framework: Rename namespace 'Configuration' to 'PilotStubberConfiguration', because I want to suggest that it is the setting for prototype stubber.
* Framework: [BUG FIX] Corrected the issue that referenced assemblies was not resolved as I thought.