Refactor: rp_query.py

[zkraus]

rp_query.py is currently very experimental state, and still a lot of development is happening.
But the code structure is spaghetti. And it need a heavy refactoring, and some API optimizations.

as an example: #2 is one specific issue to address.

But then the whole rp_query.run_query main function could use a heavy refactoring, splitting functionality to Query Launches, and listing test cases, to be more maintainable.

• refactor rp_query.run_query split the functionality
• Optimize/extend any APIs to open reusing the code example rp_query.fetch_test_item should support filters as parameters. #2
• Refactor any other large chunks of code
• Do update any related tests