Adds VcfComparator tool #4537

Job	Run time
check if the environment has privileges	1s
build and push gatk docker to artifacts	16m 41s
Validate script WDLs using womtools	1m 14s
Validate generated WDLs using womtools	13m 47s
WDL test RUN_CNV_GERMLINE_COHORT_WDL on cromwell	25m 11s
WDL test RUN_CNV_GERMLINE_CASE_WDL on cromwell	27m 17s
WDL test RUN_CNV_SOMATIC_WDL on cromwell	24m 38s
WDL test RUN_M2_WDL on cromwell	17m 13s
WDL test RUN_VCF_SITE_LEVEL_FILTERING_WDL on cromwell	13m 7s
Java 17.0.6+10 build and test cloud	16m 51s
Java 17.0.6+10 build and test integration	32m 49s
Java 17.0.6+10 build and test unit	20m 7s
Java 17.0.6+10 test on docker integration	39m 16s
Java 17.0.6+10 test on docker unit	22m 21s
Java 17.0.6+10 test on docker variantcalling	31m 59s
Java 17.0.6+10 test on docker conda	25m 2s
	5h 27m 34s

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