fixed re-calculation of forceTotal after forceAddedMass modification
fixed re-calculation of forceTotal after forceAddedMass modification

ratanakso/WEC-Sim,ratanakso/WEC-Sim,ratanakso/WEC-Sim,bradling/WEC-Sim,bradling/WEC-Sim,bradling/WEC-Sim,ratanakso/WEC-Sim,bradling/WEC-Sim