Implement a filter that removes all plain taxonomy class entries

[eladrion]

Overview

This PR will resolve #65.

Changes

Added a recursive function that creates a taxonomy class tree that does not contain the "_plain" id EDAM entries.
I did not filter by label _p since this suffix is defined by restAPE. Instead, I used the EDAM URI suffixes which seems more stable to me.

Testing

Tested it on the institutional instance at UP.

Checklist

• Code follows project standards.
• Self-reviewed and commented where needed.
• Documentation updated if needed.
• No new warnings or errors.

[vedran-kasalica]

This looks great, thanks! Indeed, it's best to rely on the _plain suffix. Alternatively, we REST APE could provide a pre-filtered taxonomy, of course.

[eladrion]

Hi @vedran-kasalica, I agree that the best solution would be to already get filtered information from RESTful APE. Filtering in the frontend is obviously introducing superfluous runtime complexity. I added a feature request in RESTful APE.