vkGetInstanceProcAddr can load both instance and device functions.
A later to get introduced vkGetDeviceProcAddr only supports device
functions, which is why there are 2 different function tables.
Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>