Fix check for trans parameters
- ConjTrans should be valid on real function, and should mean Trans. This PR adds a function to validate the trans parameter which is not affected by the precision generator.
[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