Server should evaluate answers

[JanaDrazkova]

The server should evaluate each player's answers. I think we should discuss how to set the scoring. I see several possible approaches:

1. Set the main criterion as the number of correct answers and use time as an additional criterion.

2. Assign a certain number of points for each correct answer based on the time at which the answer was received.

Time can be evaluated either proportionally to the total time allowed for the question, or we can take into account the response times of other players, which I think would be more accurate.

[ZelenyMartin]

For the simplification for now, I'd support just counting the correct answers no matter how fast or slow they arrive.

There is a Result class in quiz-server to encapsulate the logic of checking the correctness of the answer somehow and storing it somehow as some data structure (it is not finished yet).

Later we can count in the time and mimic the original Kahoot way: https://support.kahoot.com/hc/en-us/articles/115002303908-How-points-work

Also, since this is the quiz-server issue, transfere it to the quiz-server project (link Transfer issue on this page).