Add field for curators to record corresponding author

[ljwh2]

Background:
We need to be able to store the corresponding author email for each publication in the Catalog, so that in the future we can contact authors to request sumstats. Daniel previously did some investigation on whether we can pull this information from ePMC, but found it was not reliable for all publications. In the curation interface there are currently non-editable fields in the Study Details tab for corr author name and email, but they don't seem to be populated. Curators need to be able to add this information manually to each publication, and have the possibility to edit any information that is pulled in automatically.
Tasks:

1. Find out if the fields in the study details tab are being populated from anywhere
2. Add fields for curators to add this manually. This needs to be at the publication level so the best place could be in the publication-centric view. The information should been be propagated to the Study Details tab for every study in a publication

[ljwh2]

Note, would be worth doing some more investigation to see if we can now pull this from europePMC, or if we can collaborate with them to get this working

[ljwh2]

in roadmap due April 2021