This should have been part of r74406 but I only rebaked wxWidgets make/project
files themselves and not the samples/utils/demos files in it.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74407 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Build a GUI version of the benchmark program too and use it to benchmark
wxImage loading methods for now (more will be added later).
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74319 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775