shell32: Implement IID_IContextMenu in CreateViewObject() methods for shell folders that support it.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=39841Signed-off-by: Damjan Jovanovic <damjan.jov@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>