Added more default args as needed to allow most window types to be

Added more default args as needed to allow most window types to be
constructed with only the parent window arg.  In some cases other args
may be required for normal operation, but they can usually be set
after construction.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27592 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775