Improvement multiple survey test

• id_area created from merge of survey_cycle_subRegion_strate
• new method of area attribution with id_area
• possibility to keep or not routeType == "LEG"
• distFit_to_df which gives esw, trucation, gof(ks, chisquare)
• Possibility to give truncation = "max" in prepare_obs to keep all distance
• Adapted templates