Implement sonar for backend

AssignmentChecker/package-lock.json

AssignmentChecker/package.json

AssignmentChecker/src/app.ts

AssignmentChecker/src/config/Config.ts

AssignmentChecker/src/managers/HttpManager.ts

AssignmentChecker/src/shared

AssignmentChecker/src/sharedByClients

Dockerfile_AssignmentChecker

sonar/Dockerfile

sonar/cacerts