Introduce UrlService to generate absolute urls

config/services.yaml

...lication/Hwi/OAuthBundle/Controller/ConnectController.php

src/Command/RemoveAbandonnedProjectsCommand.php

src/Command/UpdateProjectsInfoCommand.php

src/Controller/CoreController.php

src/Controller/ProjectController.php

src/Services/ElementFormService.php

src/Services/GoGoCartoJsService.php

src/Services/MailService.php

src/Services/UrlService.php

src/Services/UserNotificationService.php

src/Services/WebhookService.php