Update demo to reflect changes to ChElementShellANCF API
Update demo to reflect changes to ChElementShellANCF API

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