Including the rubric, author, title, etc. in catenae manuscripts in our search results

[wlpotter]

@davidamichelson we should discuss. Ideally we would include authors, titles, and rubrics in the search results from advanced searches that target those elements.

I think the paths would be msItem/note/p/* (where * would be author, editor, title, rubric, incipit, quote, explicit, or finalRubric). It may be that we have these directly in tei:note elements

Cf. srophe/britishLibrary-data#1619 for the schema update

[wlpotter]

Note to self: we do want to add these; currently we don't have data for authors and rubrics in catenae notes. Once edits to these have been merged we can start testing on dev