Move examples to winextras folder.

Change-Id: I7ccc0c601da5cebf1d36b3cd30de49fc27f07260
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Ivan Vizir <define-true-false@yandex.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>