[combiner] add python script for driving combiner (#5497)
[combiner] add python script for driving combiner (#5497)


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