Changed CollectGcBiasMetrics to work as a SinglePassSam
Changed CollectGcBiasMetrics to work as a SinglePassSam

annkupi/picard,annkupi/picard,annkupi/picard,alecw/picard,alecw/picard,broadinstitute/picard,alecw/picard,nh13/picard,broadinstitute/picard,broadinstitute/picard,broadinstitute/picard,nh13/picard,broadinstitute/picard,annkupi/picard,nh13/picard,nh13/picard,alecw/picard