[FEAT] Add flags argument filter

[NDStrahilevitz]

Prerequisites

• [ ] This issue is an EPIC issue (add label: EPIC).
• [ ] This issue is an EPIC TASK (add issue to EPIC description).

Select one OR another:

• [x] I'll create a PR to implement this feature (assign to yourself).
• [ ] Someone else should implement this (describe it well).

Feature description

Since argument parsing happens after argument filtering, it is currently practically impossible to filter on flag values. As such a specialized filter is required for such arguments.

Additional Information (feature drawings, files, logs, etc)