Fix datacite renderer

[kimakan]

Fixes the datacite renderer in a way that make it compatible with https://schema.datacite.org/meta/kernel-4.4/doc/DataCite-MetadataKernel_v4.4.pdf

Some of the fixes are:

• Subject has attributes that were present in metadata/settings but not rendered
• Add name_type for creators and contributors
• Overhaul of the licensing to fit the specifications of datacite
• Add full support for affiliations

[coveralls]

Pull Request Test Coverage Report for Build 3689087086

• 5 of 17 (29.41%) changed or added relevant lines in 3 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.04%) to 65.842%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
daiquiri/metadata/serializers/datacite.py	4	6	66.67%
daiquiri/core/renderers/datacite.py	0	10	0.0%
<!--	Total:	5	17	29.41%	-->

Files with Coverage Reduction	New Missed Lines	%
daiquiri/core/renderers/datacite.py	2	3.13%
<!--	Total:	2		-->

Totals
Change from base Build 3619221320:	-0.04%
Covered Lines:	4603
Relevant Lines:	6991

---

💛 - Coveralls

[kimakan]

The fields creator, contributor and related_identifier are of the type JSONField in the model. Thus, no changes in the metadata model are required. I purposely tried to avoid such consequences. I tested this version on my local instance and everything worked and rendered nicely. Also, these changes does not break anything from the previous metadata versions. The entries that are not defined will simply not rendered/left out.

[agy-why]

I see, and since the licences identifiers are MethodsSerializers they do not require either changes in the model.

[agy-why]

The entries that are not defined will simply not rendered/left out.

Although in this case the entry is defined: {'nameType': name_type}. But maybe you mean that defined entry with None value are not rendered, correct?

[kimakan]

There is one additional change that I would like make. Currently, we provide only the Updated date explicitly. However, the datacite.org seems to use the mandatory PublicationYear we are providing to create the Issued date internally. https://api.datacite.org/application/vnd.datacite.datacite+json/10.17876/gaia/dr.3

      "dates": [
        {
          "date": "2022-06-13",
          "dateType": "Updated"
        },
        {
          "date": "2022",
          "dateType": "Issued"
        }
      ],

This date follows the YYYY format which isn't precise.

I suggest that we provide the Issued date explicitly by using the published field from the metadata. We are already using it to create PublicationYear for the datacite.org but we drop MM-DD due to the requirements for PublicationYear.

[agy-why]

@kimakan :+1:

Issued: published full date YYYY-MM-DD
PublicationYear: published year only YYYY