Added needed comments to ChMatrix.i SWIG typemaps. Also test if appveyor is still building
Added needed comments to ChMatrix.i SWIG typemaps. Also test if appveyor is still building

rserban/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,rserban/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,rserban/chrono,dariomangoni/chrono,rserban/chrono,projectchrono/chrono,projectchrono/chrono,projectchrono/chrono,dariomangoni/chrono,projectchrono/chrono,dariomangoni/chrono,projectchrono/chrono,projectchrono/chrono,rserban/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono