MR25v1 - mf/tests: Add dmo / transform tests for the audio resampler and color converters.

[Rémi Bernon (@rbernon)]

Rémi Bernon (@rbernon) commented about dlls/mf/tests/mf.c:
>  
>      ok(hr == S_OK, "MFTEnum returned %lx\n", hr);
>      ok(count == 1, "got %u\n", count);
Looks like the audio resampler transform matches more than one transform here, I'll fix this in a future update.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/25#note_553