[combiner] group moved info into one field (#5689)
[combiner] group moved info into one field (#5689)

* [combiner] group moved info into one field

* Don't store gvcf_info when END is present.

END is mutually exclusive with other INFO fields in a gVCF.

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