Rename mass to gravParam, less confusing
Rename mass to gravParam, less confusing

JPelamatti/TudatDevelopment,JPelamatti/TudatDevelopment,JPelamatti/TudatDevelopment,Tudat/tudat,Tudat/tudat,DominicDirkx/tudat,DominicDirkx/tudat,DominicDirkx/tudat,Tudat/tudat,Tudat/tudat