Person and StudentProfile models + base tests
AkademGroup and GroupParticipations models + tests
Relations tests
Add columns to test
Add columns to models
Add relations to models
Add models: Attendace, ClassSchedule, Classroom, Course, TeacherProfile, TeacherSpeciality. And column tests for them.
Model tests: remove unnecessary DRYing and improve styling.
Add columns to models.
Relations and column tests for models.
Add columns and relations to models.