AssetType type hierarchy cycle detection
Added a checker to ensure that there are no cycles in the type inheritance graph. Also adapted the code of assetTypeHierarchy to be safe from throwing an exception if there is some cycle.
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
Added a checker to ensure that there are no cycles in the type inheritance graph. Also adapted the code of assetTypeHierarchy to be safe from throwing an exception if there is some cycle.