Ajout de l'entity contenu et des controller/service liés

config/merged/contenu.config.php

config/merged/index.config.php

config/merged/template.config.php

src/UnicaenRenderer/Controller/ContenuController.php

src/UnicaenRenderer/Controller/ContenuControllerFactory.php

src/UnicaenRenderer/Entity/Db/Contenu.php

src/UnicaenRenderer/Entity/Db/Macro.php

...tity/Db/Mapping/UnicaenRenderer.Entity.Db.Contenu.dcm.xml

src/UnicaenRenderer/Entity/Db/Template.php

...Renderer/Provider/Privilege/DocumentcontentPrivileges.php

...Renderer/Provider/Privilege/DocumentcontenuPrivileges.php

...enderer/Provider/Privilege/DocumenttemplatePrivileges.php

src/UnicaenRenderer/Service/Contenu/ContenuService.php

...caenRenderer/Service/Contenu/ContenuServiceAwareTrait.php

...UnicaenRenderer/Service/Contenu/ContenuServiceFactory.php

src/UnicaenRenderer/View/Helper/ContenuViewHelper.php

src/UnicaenRenderer/View/Helper/partial/contenu.phtml

view/unicaen-renderer/contenu/afficher.phtml

view/unicaen-renderer/contenu/index.phtml

view/unicaen-renderer/index/index.phtml