RCP: X.X, First Analec mesure macros

Create a set a macro to compute mesures with Analec annotations

see https://groupes.renater.fr/wiki/txm-info/public/spec_analec_mesures

(from redmine: issue id 1930, created on 2016/11/17 by Matthieu Decorde)

added macros type::feature + 1 deleted label

changed milestone to %TXM Annotation URS 2.0

closed

assigned to @mdecorde