Zeiss ZVI: ignore invalid plane coordinates

[melissalinkert]

If the parsed coordinates do not account for all of the images, then we
need to ignore them. Otherwise, openBytes with different values of 'no'
may open the same image.

See http://www.openmicroscopy.org/community/posting.php?f=13&t=5130#pr10246

[melissalinkert]

The files mentioned in the forum post have been added to data_repo/from_skyking/zeiss-zvi/oli/

--test zeiss-zvi

[mtbc]

Against ome/data_repo/from_skyking/zeiss-zvi/oli/ I get,

   [testng] Total files: 6
   ...
   [testng] LOCI software test suite
   [testng] Total tests run: 276, Failures: 0, Skips: 184

and the regular test suite passes happily.

[mtbc]

It's okay with me if this is merged.

[joshmoore]

All develop jobs still green. Merging.