[Java] Improve QuizResultController

[kolesroma]

QuizResultController has to fully process post request

Scale returning values to percents

• before modification if you send a post request with body

  [
  {"emotionId": 1, "value":5},
  {"emotionId": 2, "value":4},
  {"emotionId": 3, "value":3},
  {"emotionId": 1, "value":3}
  ]

• you get

  [
  "1": 8,
  "2": 4,
  "3": 3,
  ]

• after scaling you should get the result

  [
  "1": 80,
  "2": 80,
  "3": 60,
  ]

Save result to database

• write the result to quiz_result table transactionally

[kolesroma]

working on, but there is a need with jpa entities good relations

[kolesroma]

scaled percents but currently I don't have new jpa entities

[kolesroma]

pushed, but we need a little fix: remove primary key from quiz_result table so we can have same ids

[kolesroma]

on hold cuz we need to migrate DB