[Records] ResourceSync support

[netsensei]

Research whether or not support for ResourceSync could enhance the usefulness of the application.

Detailed description

ResourceSync is a protocol geared towards synchronisation of repositories and applications across the Web. It's not only designed to allow syncing of metadata, but the digital sources described by said metadata as well.

ResourceSync is designed to be more efficient compared to OAI-PMH or classic REST API's. Synchronisation needs fewer HTTP calls, while discoverability is entirely based on the http://www.sitemaps.org format. ResourceSync enhances discoverability of resources, something that OAI-PMH simply doesn't provide.

Context

Adding ResourceSync could be useful to increase the efficiency of transporting metadata i.e. in dumps instead of discrete XML bitstreams through separate HTTP calls.

The protocol extends the possibility of also syncing resources described by the metadata such as (digitised) images, videos, texts, etc. It could work well in conjunction with IIIF and enhance resource discovery.