Ajout de sécurité

pom.xml

...m/example/gestionstagesbackend/Config/SecurityConfig.java

...mple/gestionstagesbackend/controllers/AuthController.java

...gestionstagesbackend/controllers/CandidacyController.java

...ain/java/com/example/gestionstagesbackend/enums/Role.java

...ava/com/example/gestionstagesbackend/model/Candidacy.java

...va/com/example/gestionstagesbackend/model/Enterprise.java

...ain/java/com/example/gestionstagesbackend/model/User.java

...ple/gestionstagesbackend/repositories/UserRepository.java

...om/example/gestionstagesbackend/services/UserService.java