Backport r75319: support for localized help menus

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75332 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't use native cue banners in wxTextEntry::SetHint() on XP.

The code apparently expected EM_SETCUEBANNER to return false on
pre-Vista systems (where the cue banners don't work).  This isn't the
case in practice, so check for Vista explicitly and use the generic
implementation on XP.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75333 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775