Disable wxDataObject in wxDFB build at configure level.

Otherwise we'd just get an error when compiling wx/dfb/chkconf.h later.

Closes #15594.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75049 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
CoreText is always available on 10.5+, so using all this code unconditionally, committing Vadim's suggestions with two extensions, see #15580

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75050 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>

Conflicts:
	src/osx/carbon/graphics.cpp
	src/osx/core/fontenum.cpp
patched for ICC

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>