This basically removes the "adv" library, even though it's still
preserved for compatibility with user make/project files referring to
it.
It is done because the distinction between "adv" and "core" was never
really clear (e.g. why wxTreeCtrl was in core but wxTreeListCtrl in
adv?) and it prevented some core classes from using adv ones.
This undocumented "private" class was used for various windows UxTheme
functions which are available since WinXP. As wxWidgets 3.1 is XP+ it
does not make sense anymore to load the theme functions dynamically.
Explicitly include $(BCCDIR)/include/windows/sdk directory in the resource
compiler options, as it needs it to find windows.h.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77993 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
