add route deleteAssignment

...ns/20240228143135_add_deleted_to_assignment/migration.sql

ExpressAPI/prisma/schema.prisma

ExpressAPI/src/managers/ExerciseManager.ts

ExpressAPI/src/managers/GitlabManager.ts

ExpressAPI/src/middlewares/ParamsCallbackManager.ts

ExpressAPI/src/routes/AssignmentRoutes.ts

ExpressAPI/src/routes/ExerciseRoutes.ts

ExpressAPI/src/routes/UserRoutes.ts

ExpressAPI/src/shared/.gitignore

ExpressAPI/src/shared/LICENSE

ExpressAPI/src/shared/README.md

ExpressAPI/src/shared/config/SharedConfig.ts

ExpressAPI/src/shared/helpers/ArchiveHelper.ts

ExpressAPI/src/shared/helpers/Dojo/SharedAssignmentHelper.ts

ExpressAPI/src/shared/helpers/Dojo/SharedExerciseHelper.ts

ExpressAPI/src/shared/helpers/Json5FileValidator.ts

ExpressAPI/src/shared/helpers/LazyVal.ts

ExpressAPI/src/shared/helpers/Toolbox.ts

ExpressAPI/src/shared/helpers/TypeScriptExtensions.ts

ExpressAPI/src/shared/helpers/recursiveFilesStats/README.md