Create JSONL configuration file for topic filtering

[FrancescoCasalegno]

Context

• We have set up a pipeline stage that is able to determine the relevance of an article w.r.t. some user-given topics configuration.
• Currently, the only config file we have behaves as a wildcard *.
• We should instead have specific topic inclusion criteria for each archive type (arXiv, PMC, ...).

Actions

• Compile a JSON configuration file for topic filtering.