Enhance Google Scholar indexing

[maxkadel]

Descriptive summary

There is some metadata we could add to the header to enhance works' indexing in Google Scholar.

Steps to reproduce the behavior in User Interface (UI)

1. Go to a scholarly work (e.g. a dissertation)
2. Inspect the html using the dev tools, look in the header for the <!-- Google Scholar metadata --> comment and look at the meta data available
3. Note that on main there is a comment on a number of scholarly fields that are not currently available, in addition to citation_dissertation_institution, which is required for theses and dissertations

Acceptance Criteria/Expected Behavior

• [ ] All fields currently in the comment can be displayed in the header meta data
• [ ] citation_dissertation_institution is in the header meta data

Rationale (for feature request only)

See Google Scholar's indexing documentation for more context. Since so many institutions use Hyrax for institutional repositories, or for theses and dissertations, it makes sense to prioritize Google Scholar SEO.

Related work

See https://github.com/notch8/hykuup_knapsack/issues/578 for the ticket that led to this