Rudder

Today, when an ncf Technique is created, the user has to manually add the technique from the reference library to the active technique library.

We want to automatise that step so that as soon a Technique is created with ncf, it is automatically added.

We also need to take into account the case when the user actually removed an ncf Technique and the Technique is modified/saved again in ncf-builder. We don't want to add it again (it is perhaps a second use case, at least it should not block the first part which is auto-addition).