These are not mandatory changes, but could avoid confusion in future if contacts and physics items will implement interfaces that are not used now.
These are not mandatory changes, but could avoid confusion in future if contacts and physics items will implement interfaces that are not used now.

projectchrono/chrono,jcmadsen/chrono,PedroTrujilloV/chrono,andrewseidl/chrono,Bryan-Peterson/chrono,hsu/chrono,dariomangoni/chrono,armanpazouki/chrono,Bryan-Peterson/chrono,Milad-Rakhsha/chrono,rserban/chrono,jcmadsen/chrono,Milad-Rakhsha/chrono,armanpazouki/chrono,amelmquist/chrono,tjolsen/chrono,rserban/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,jcmadsen/chrono,dariomangoni/chrono,amelmquist/chrono,amelmquist/chrono,andrewseidl/chrono,armanpazouki/chrono,hsu/chrono,hsu/chrono,tjolsen/chrono,armanpazouki/chrono,Bryan-Peterson/chrono,PedroTrujilloV/chrono,Bryan-Peterson/chrono,amelmquist/chrono,armanpazouki/chrono,PedroTrujilloV/chrono,dariomangoni/chrono,projectchrono/chrono,jcmadsen/chrono,rserban/chrono,dariomangoni/chrono,dariomangoni/chrono,andrewseidl/chrono,amelmquist/chrono,jcmadsen/chrono,projectchrono/chrono,tjolsen/chrono,projectchrono/chrono,PedroTrujilloV/chrono,andrewseidl/chrono,rserban/chrono,armanpazouki/chrono,rserban/chrono,hsu/chrono,andrewseidl/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,rserban/chrono,Milad-Rakhsha/chrono,hsu/chrono,projectchrono/chrono,rserban/chrono,tjolsen/chrono,Milad-Rakhsha/chrono,jcmadsen/chrono,tjolsen/chrono,Bryan-Peterson/chrono,amelmquist/chrono,jcmadsen/chrono,PedroTrujilloV/chrono