server: Map a SD group to Unix group modes if the SD owner is present anywhere in the current user's token.

Instead of requiring the SD owner to match the token user.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=44691Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>