[hail/ptypes] Rework ptype rules in importVCF (#7946)
[hail/ptypes] Rework ptype rules in importVCF (#7946)


danking/hail,cseed/hail,hail-is/hail,cseed/hail,danking/hail,hail-is/hail,danking/hail,danking/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,hail-is/hail,cseed/hail,danking/hail,danking/hail,danking/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail