Exam Session initialization

On this page we should have a crud for SubjectExam entity that enables search by:

• session
• definition.subject
• definition.cycle
• room
• date

On the top of the page, there should be a box for initialization of the session, where the user selects the YearExamSession and clicks on button Initialize.

On this action, we need to iterate over all ExamDefinition entities with examSession=selectedYearExamSession.session and to create an entity SubjectExam with the provided YearExamSession and ExamDefinition if it does not already exist. After creation, the interface SubjectExamResourceCalculator.calculate(SubjectExam exam) method should be invoked (this method should be in separate service and will be defined in another task).

The newly created SubjectExam should be saved in the database.