microservice helloworld supp, migrations de la databases faites par le service auth

...src/app/affichage-examen/question/question.component.html

microservices/helloworld/dockerfile

...services/helloworld/prisma/migrations/migration_lock.toml

microservices/helloworld/prisma/schema.prisma

microservices/helloworld/prisma/seed.ts

microservices/minikube/k8s-auth.yaml

microservices/minikube/k8s-postgres.yaml

microservices/nginx.conf