* feat: [BD-26] add the is_proctored value to SequenceMetadata API * feat: add temporary flag for enabling/disabling proctored exams * fix: change creation date * fix: fix text indents * fix: [BD-26] Remove redundant duplicated test. Co-authored-by: Sagirov Eugeniy <sagirov19@gmail.com> Co-authored-by: Igor Degtiarov <igor.degtiarov@raccoongang.com>