Add endpoint to retrieve quiz results

[sofiiadidovych]

Description

Created the GET endpoint for /api/quiz-results. We can filter data in four ways: by fk_answer_id column from the table quiz_results by fk_user_id column by both and without queries - this way we will have all the entries

Fixes # 32

How to test?

You can use Swagger http://localhost:3000/api/documentation/#/Quiz%20Results/get_quiz_results

Checklist

• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] This PR is ready to be merged and not breaking any other functionality

[sofiiadidovych]

The code looks nice and clean. Good job @sofiiadidovych :)

Thank you, @TITHI1244!

[sofiiadidovych]

Hi @sofiiadidovych , I tested Your filter options,all are working nicely...You did A very good job,👏

Thank you, @rajanibusani !

[sofiiadidovych]

Good job @sofiiadidovych 👍

Thank you, @sandhana14 !