added backend support for alternate citation dates #2606

[scolapasta]

RFI Checklist

Before submitting the pull request, fill out sections (1.) Related Issues and (2.) Pull Request Checklist.

1. Related Issues

List and link to the issues in this Pull Request.

- #2606 Add Backend Support for Changing Citation Date

2. Pull Request Checklist

• Functionality completed as described in FRD - github issue
• Dependencies, risks, assumptions in FRD addressed - github issue
• Unit tests completed - n/a
• Deployment requirements identified (e.g., SQL scripts, indexing) - added update script
• Documentation completed - added
• All code checkins completed

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3. Review Checklist

After the pull request has been submitted, fill out this section.

• Code review completed or waived - reviewed by @michbarsinai
• Testing requirements completed
• Usability testing completed or waived - waived
• Support testing completed or waived - waived
• Merged with develop branch and resolved conflicts

[scolapasta]

For dev / test environment, these are the additional statements to run:

-- Add new foreign ket to dataset for citation date (from datasetfieldtype)
ALTER TABLE dataset ADD COLUMN citationdatedatasetfieldtype_id bigint;

ALTER TABLE dataset
ADD CONSTRAINT fk_dataset_citationdatedatasetfieldtype_id FOREIGN KEY (citationdatedatasetfieldtype_id)
REFERENCES datasetfieldtype (id) MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION;

[kcondon]

Ready for merging.