add new functions that read pmag_criteria and accept all SPD.v.0.1 criteria
add new functions that read pmag_criteria and accept all SPD.v.0.1 criteria

lfairchild/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy,Caoimhinmg/PmagPy,Caoimhinmg/PmagPy,lfairchild/PmagPy