Support GRIB GDT 140 and PDT 73 about netcdf-java HOT 6 OPEN

FWIW, the issue of Product Definition 32 support arose two years ago in Unidata/thredds#846. Looks like @cofinoa took a whack at it but it turned out to be pretty complex and so apparently was not completed.

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The dataset creator has suggested they might switch to a different Product Definition Template. He didn't say which, but I would think it would be likely one of the other forecast templates 70-72.

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Thanks for the report, @msdsoftware! I'll take a look once we get 5.0.0 stable out the door (likely today). Do you have a sample file I could work with? Even if they switch templates, it'd still be nice to take a look and see if we can support it.

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@lesserwhirls, I have a couple sample datasets. Would have to double-check but I think one should be okay for redistribution.

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@msdsoftware please can you share the sample datasets?

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Hi guys, hope it's appropriate to piggyback this issue as it seems relevant and I have a couple of example files I can share for reference sake.

I'd been wrestling with reading these files with software I am working on, despite the software being stable until encountering these particular grid data types. I ended up deciding to try loading them in Panoply which has also crashed and burned with the same NullException I have been experiencing - which comes as a result of Grib2PDS not handling product definition 32, which is required to handle these files.

If there are any suggestions of how to work around this, that would be appreciated - but otherwise this seems like something which should be able to work as it appears that this product definition is known.

Cheers,
Dan
ACCESS-G-APS3-MEDIA_2019122212_000_95.228.zip

ACCESS-G-APS3-MEDIA_2019122212_000_96.228.zip

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