* Use a subclass of NSView for the dummy view which overrides hitTest: to

* Use a subclass of NSView for the dummy view which overrides hitTest: to
  return nil.  That tells Cocoa never to send it any mouse events.
* Set the autoresizingMask of the hidden view on the dummy view
* Added some code to paint green over the dummy view.  It makes debugging
  some things easier.  Change the #undef WXCOCOA_FILL_DUMMY_VIEW to enable.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@23047 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775