menage simulation
move load_param into a function
restore longitudinal parameters
minor change in param
change SimulPension to Regime
Introduce RegimeComplementaire class
minor in fonction publique
generic trim
remove sali, workstate and datesim from regime attributes
salref not in attribute
more generic paramaters in RG
calculate_taux come back
adapt complementaire to new paradigma
change filename
general calculate function
create RegimeBase
plaf_sali becomes more a plaf sali
get_trimester
small improvments
cleaning in import