Added 'virtual inheritance' for the ChShared base, because of the 'diamond' inheritance problem.
Added 'virtual inheritance' for the ChShared base, because of the 'diamond' inheritance problem.

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