Add ability to "deactivate" contact shapes without having to remove them from the Chrono::Parallel data manager arrays.
Add ability to "deactivate" contact shapes without having to remove them from the Chrono::Parallel data manager arrays.

This is done by setting the ID of the associated body to a negative value.  Such shapes will be excluded at the broad-phase collision stage.

armanpazouki/chrono,jcmadsen/chrono,armanpazouki/chrono,rserban/chrono,amelmquist/chrono,rserban/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,armanpazouki/chrono,projectchrono/chrono,armanpazouki/chrono,rserban/chrono,jcmadsen/chrono,jcmadsen/chrono,rserban/chrono,amelmquist/chrono,amelmquist/chrono,jcmadsen/chrono,armanpazouki/chrono,projectchrono/chrono,jcmadsen/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,jcmadsen/chrono,jcmadsen/chrono,dariomangoni/chrono,projectchrono/chrono,amelmquist/chrono,armanpazouki/chrono,rserban/chrono,Milad-Rakhsha/chrono,rserban/chrono,rserban/chrono,projectchrono/chrono,amelmquist/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,amelmquist/chrono,dariomangoni/chrono,dariomangoni/chrono