clin-seq: make check for sample common name case insensitive
clin-seq: improve subject legends file for snv-indel-report and remove redundant code in get_ref_align_builds
clin-seq: added min variant read count filter parameter to snv-indel-report
clinseq: add optional variant caller count filters to snv-indel-report
clin-seq: update test results for snv-indel-report test
clin-seq: bless new build of clinseq-test-wer to take into account updates to snv-indel-report filtering