Fix the case that two landmark points coincide and the thinesplatesplines transform raises a Linalgerror.
Fix the case that two landmark points coincide and the thinesplatesplines transform raises a Linalgerror.

mrgloom/menpofit,grigorisg9gr/menpofit,yuxiang-zhou/menpofit,yuxiang-zhou/menpofit,mrgloom/menpofit,grigorisg9gr/menpofit