Register backlist DOIs in batches

[joemull]

Is your feature request related to a problem? Please describe.
Publishers would like to be able to register DOIs in batches for back content. They may need to do this when they load a backlist into Janeway for a journal that never had DOIs, for example.

Describe the solution you'd like
We could create a tool/button that allows you to tell Janeway: please register all the DOIs for this journal for which no validated/registered DOI yet exists, as long as use_crossref is enabled.

Currently, you can register or re-register all the DOIs in a journal via the command line with register_all_crossref, but this command creates one XML submission per article, rather than concatenating the articles into a single Crossref submission, which would be better for an upgraded batch submission tool.

@mauromsl sees two parts to this problem: one is batch-exporting articles to Crossref. The second one is a query tool that let's you more precisely choose which articles to export (perhaps an entire issue, an entire journal, all the articles that don't have a successful receipt etc.). The second feature could be used for a myriad of things like depositing via DOAJ API or updating metadata.

[joemull]

We are going to use class-based views for the querying and filtering functionality. @mauromsl explains: "One base class like FilteredArticlesListView(ListView) that we can reuse for CrossrefArticlesView, DOAJArticlesView, SearchSubmissionsView."