[3/3] ddraw/tests: Add a couple of fog tests.

[Matteo Bruni]

2011/7/27 Marvin <testbot at testbot.winehq.org>:
> Hi,
>
> While running your changed tests on Windows, I think I found new failures.
> Being a bot and all I'm not very good at pattern recognition, so I might be
> wrong, but could you please double-check?
> Full results can be found at
> http://testbot.winehq.org/JobDetails.pl?Key=12866
>
> Your paranoid android.
>
>
> === WINEBUILD (build) ===
> Make failed
>

Apparently the testbot got confused and mixed up my two 3-patch series
(in hindsight, I should have sent the two series with some delay in
between).