[aGrUM] using 'fast' syntax in `modele.add(fast_descritption)` for BayesNet,...
[aGrUM] using 'fast' syntax in modele.add(fast_descritption)
for BayesNet, CredalNet and InfluenceDiagram
[aGrUM] using 'fast' syntax in modele.add(fast_descritption)
for BayesNet, CredalNet and InfluenceDiagram