True case-sensitive filenames

[Gerald S. Williams]

BTW, renaming directories in a multi-case environment
shouldn't be the first of your concerns. You can't
create them in the first place using CreateDirectory.
There's no equivalent to FILE_FLAG_POSIX_SEMANTICS
for that call, as far as I can tell.

If you want to support this feature for directories,
you may be back to using the Native API. I know you
can create directories in a truly case-sensitive
manner that way. It's probably possible to rename
them as well.

-Jerry