D3DTEXF_NONE is a special value for mipmapping which disabled
mipmapping, but it is not a valid mag / min filter parameter.
D3DTEXF_POINT is what we want

Fix SetupQueryInfOriginalFileInformation to check for the former rather than the latter.

unloadVertexData() will already have done this if necessary.

ole32: Move the logic in StgCreateDocfile for "if no share mode given then DENY_NONE is the default" to before the validateSTGM check.

Add a test that shows this behaviour is correct.

Remove a test on the access mode that is redundant because it is already 
done in validateSTGM.