OpenAPI => Abort first try

.gitignore

ExpressAPI/package-lock.json

ExpressAPI/package.json

ExpressAPI/src/openapi.ts

ExpressAPI/src/routes/AssignmentRoutes.ts

ExpressAPI/src/routes/BaseRoutes.ts

ExpressAPI/src/routes/ExerciseRoutes.ts

ExpressAPI/src/routes/GitlabRoutes.ts

ExpressAPI/src/routes/SessionRoutes.ts