* Define schemas that should be defined.
Came out of the starter site project, running "config_inspector" flagged
a number of things.
* Avoid the deprecated sequence specification.
* Bad assumption on my part...
... Seeing the name and the module, figured this schema was just
misplaced... Appears that the `islandora_image` thing is indeed in
`islandora` proper.
* Initial implementation of a REST Export serializer for IIIF Manifests
* Coding standards
* Pass full URL to IIIF
* Basic implementation of manifest per https://iiif.io/api/presentation/2.1/#manifest
* Remove unused variable
* Remove dependency for OSD, add config variable for IIIF server
* Update settings.yml
* Fix key name
* fix schema/settings issue
* Broaden approach of discovering file/image fields
Joe Corall
Alexander O'Neill