Since Windows 8.1, these functions have been deprecated and run in a sort
of compatibility mode, reporting Windows 8 unless the application supplies a
manifest that specifies compatibility with newer Windows versions explicitly
(by listing their GUIDs).

Some applications have bad non-forward-compatible checks based
on GetVersionEx, and depend on this behavior (they do not supply a
manifest). Currently, they break on Wine if we use a Windows 10 prefix for
example, since we always report the real version. One example is the game
Rock of Ages.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>