Feature request Cawemo export to file system, including graphic formats

[charlieclark-onefiber]

Is your feature request related to a problem? Please describe.

Provide a file system option for the Cawemo to Modeler export scripts.

Describe the solution you'd like

While the Cawemo to Modeler scripts are useful, it would be useful to also export the files to the file system for archive purposes. I can probably adjust the shell script to do this for me but it would be nice to see it in the script. In this case it would also be very useful to export the PNGs and SVGs with the BPMN file. If I understand the website source correctly, these files are actually generated by Javascript and thus not available in the API. If it's not directly possible an example of how to do this would be very helpful.

Describe alternatives you've considered

Adapt the script myself or do the exports manually, which is not really an option given the number of diagrams.

Additional context

We've got around 100 files to export and an external backup should be an option.