Check the speed of wxImage::Scale() using this algorithm too.
As expected, it's between normal and high quality when upscaling and
exactly the same as high quality when shrinking (because it is actually
the algorithm used for shrinking for wxIMAGE_QUALITY_HIGH).
Use the string parameter as the name of the file containing the image to
resize and the numeric parameter as the scale factor in percents (so
that fractional factors could also be specified using this integer
parameter).
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
