Fix CSR constructor with nonzeros_vector
Fix CSR constructor with nonzeros_vector

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