[ftr] data creation: set up and describe local image preparation

[krHERO]

Is your feature request related to a problem? Please describe.
users with no developing interests struggle by handling images that are only locally available (no iiif manifests from a library)

Describe the solution you'd like
create a workflow and support to handle local images

Describe alternatives you've considered
none

[bwbohl]

I’d suggest adding a digilib instance to the Docker Compose that would serve a local directory containing the images.

[nikobeer]

Have been working on this together with @lexngu. Have a look at https://github.com/Max-Reger-Institut/edirom-showcase. It is working but documentation is still work in progress.

[nikobeer]

You can copy your images into the contained folder digilib-images. This will be mounted as digilib's image base path. You can retrieve an IIIF manifest at: http://localhost:8080/digilib/Manifester/IIIF/2/[path_to_your_image_or_image_folder(s)_within_digilib-images]