[enhancement] new special syntax for config overrides
This makes the existing overrides feature more broadly useful and easier to apply directly in the config syntax.
[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
This makes the existing overrides feature more broadly useful and easier to apply directly in the config syntax.