SDL_mixer: MSVC project: rebuilt libgme dlls from latest v0.6.3-SDL branch. (39893)

SDL Commits
1

https://github.com/libsdl-org/SDL_mixer/commit/39893daf20a5c32782a7120c6e81d1870619ff8c

[Couldn't obtain the patch due to network issues; please check the above link instead.]