Implement Pagination for Content libraries

Jira Issue: SOL-4

Provides pagination for content Libraries in the Studio Editing View.

* Partner information: 3rd party-hosted open edX instance, for an edX solutions client (so will need to get some sort of solution merged in)
* Merge Deadline: Next Week, 11th of December
Most likely it would make sense to log actual error with `log.exception(message)`. Also, upstream reviewers (sarina mostly) point out that logging is more efficient using `log("something with %old_style format parameters", parameter1, parameter2, ...`)