Fix SoX's failing to recognize file paths with non-latin characters

Notes for people using SoX under windows

If you use the binaries from here, and you want utf-8 support for paths (this is needed for Japanese/Chinese/Korean names in paths for example) you have to download the files from and follow the steps below:

1. Extract the files from the zip
2. Run the PreferExternalManifest.reg file and let it overwrite the registry entry
3. Copy the sox.exe.manifest file to the folder where sox.exe is located
4. Enjoy sox working with utf-8 paths :)

References:

1. https://github.com/DevYukine/red_oxide#notes-for-people-using-sox-under-windows