Use the same format as is used by MSVS itself to avoid spurious changes when
modifying the files. Notably:
- Use DOS end of line format (0D 0A).
- Add UTF-8 BOM (EF BB BF) to the beginning of the files.
- Do not put CR LF at the end of the last line in the file.
Closes https://github.com/wxWidgets/wxWidgets/pull/440
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
