dep/animone: add experimental accessibility strategy I also moved most of the functions out of util/win32.cc, because that file is meant for things that are shared between the different functions, and currently that is only wide string conversion helpers.

These icons are from Yusuke Kamiyamane's Fugue Icons[1] pack.
There are no changes divergent from any of the original files.

[1]: https://p.yusukekamiyamane.com/