While we can't change the type of wxVariant to which SAFEARRAYs are converted
by default, it's much more convenient to work with the variant objects of the
correct type, i.e. using wxVariantDataSafeArray, when dealing with SAFEARRAYs,
so add a flag which can be set to tell a wxAutomationObject to behave in this
way.
Closes#14700.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75004 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
