3613098: updated CrossrefDoiEncoder and CrossrefReferenceNormalizer so on...

byronvealerequested to merge
issue/bibcite_crossref-3613388:3613388-avoid-import-errors into 2.0.x

3613098: updated CrossrefDoiEncoder and CrossrefReferenceNormalizer so on fetch failure a marker entry is appended to the decoded results, the failure travels into the import batch instead of being discarded, and the failures are reported along with the successes.

Closes #3613388

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