Save multimedia content to backup storage

A task to save *all* JB media related to shows, present and back-catalogue, to a single JB-controlled storage as the source-of-truth from this point forward.

Currently files are dispersed on various services, some missing, some on archive.org (#22) ...

Basically anything that's referred to by the current WP site that we don't want to loose access to before it vanishes.
Seeing the current WP as a sort of index of third-party media items for the last 10 years.. would be nice to capture as much of that as we can before it's too late.

Thus, a task to setup some cloud storage (decision on where, and which TBD) for use as the central repository for all media from JB that's being served to this website.

related to #22