Test adding documents when creating works and publications
Refactor archive document creation when adding a document

The routine to create ArchivesDocuments alongside creating a Work have
been moved from a Work filter to WorksController::add() for better
separation of concerns.
Rectify names of works add form labels
Refactor archive document creation when adding a publication
Replace call to deprecated work->arists()
Remove extra archives_documents entries caused by bug
Make artist name normal weight in compact view
Fix language pluralization
Figure out year ranges
Add sample image for testing
Write document creation test
Fix documents date created bug
Add Creeate menu to navbar
Refactor archive document creation when adding an exhibition