create initial vgpmap_magic3.0, refactor initial inputs
create initial vgpmap_magic3.0, refactor initial inputs
Caoimhinmg/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy