In sonar module, replaced message named_value_float by new message distance_sensor
In sonar module, replaced message named_value_float by new message distance_sensor

lis-epfl/MAVRIC_Library,gburri/MAVRIC_Library,lis-epfl/MAVRIC_Library,lis-epfl/MAVRIC_Library,gburri/MAVRIC_Library,gburri/MAVRIC_Library