filters-parsers update to allow filters on smart fields with belongsTo reference

[rfenaux]

…relationship

Definition of Done

General

• [√ ] Write an explicit title for the Pull Request, following Conventional Commits specification
• [√ ] Test manually the implemented changes
• [ √] Validate the code quality (indentation, syntax, style, simplicity, readability)
• [√ ] Ensure that Types have been updated according to your changes (if needed)

Security

• [ √] Consider the security impact of the changes made