import digwf client code from old readux, to support cover image ingest [#67574168]
import old readux code for logic to generate fedora pids based on arks [#67574168]
add page/image objects from old readux and enable volume primary_image relation [#67574168]
minor cleanup for consistency
manage.py script to import book cover images to fedora using digwf and blank image detection [#67574168]
document new settings required for cover image import [#67574168]
place-holder page view url for minting arks; thumbnail image view imported from old readux [#67574168]
sample code for displaying volume cover image [#67574168]
generalize collection cover view for re-use with volumes [#67574168]
add cover browse view for volume list and search result displays; display mini cover in volume list display [#67574168]
add logic to convert cover images to jpeg2000 before ingesting [#67574168]
preliminary landing page for single book [#73078428]
link to new volume landing page from list views (search/browse) [#73078428]
Merge branch 'develop' into feature/page-access

Conflicts:
	readux/books/templates/books/snippets/list_volume.html
	readux/collection/templates/collection/browse.html
	readux/collection/templates/collection/view.html
	readux/fedora.py
	readux/localsettings.py.dist
	sitemedia/css/readux.css
	sitemedia/js/local.js
add more details to volume landing page [#73078428]
restore volume list/cover view toggle display on collection view page
add unapi link to single volume page, to make harvestable by zotero [#73078428]
unit test cleanup for rdf_dc / volume date changes
clean up unit tests for search with collection facets
unit tests for single-volume display [#73078428]