In order to make it easier to add shader backends based on external
libraries, e.g. vkd3d-shader. Additionally, allows us to easily parse
additional DXBC chunks in wined3d.
Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>