Fix calculations in ChTire::DiscTerrainCollisionEnvelope to prevent possible errors due to roundoff
Fix calculations in ChTire::DiscTerrainCollisionEnvelope to prevent possible errors due to roundoff

Milad-Rakhsha/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,rserban/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,projectchrono/chrono,rserban/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,rserban/chrono,projectchrono/chrono,rserban/chrono,dariomangoni/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono,projectchrono/chrono,dariomangoni/chrono,rserban/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,dariomangoni/chrono