d3dx8: Dynamically import d3dx8 in the tests so the tests can be skipped if the dll is not found

[Maarten Lankhorst]

Hello Paul,

2008/5/5 Paul Vriens <paul.vriens.wine at gmail.com>:
> Maarten Lankhorst wrote:
>
> >
> > This is better then downright crashing on the missing dlls.
> >
> > This patch was created using grep and sed. :-)
> > ---
> >
> >
> > ------------------------------------------------------------------------
> >
> >
> >
>  Hi Maarten,
>
>  When do you see a crash? Winetest itself already checks if a dll is
> present. If it's not, the tests are skipped as can be seen on
> test.winehq.org..
It was crashing when I ran the test directly. But if that behavior is
ok I'll just modify my script that runs the test.

Cheers,
Maarten.