Examples developers doc

[jburel]

Discussed with @will-moore and @pwalczysko Current developer pages (https://docs.openmicroscopy.org/omero/5.5.1/developers/Python.html Java/Matlab) need more examples e.g. how to delete annotation links

Also from feedback it is necessary to create "Example" workflow e.g. show user how to write a script:

• Load a dataset
• analyse images in the datasets
• upload generated ROIS
• upload results as CSV.

This is an overarching card since code snippet will go in a repo, full example as a notebook, etc.

[jburel]

See https://github.com/orgs/ome/projects/4#card-24813118