fixed typo in unit test
update VUS variant script to exclude both parts of a compound het where one is non-lof
fixed bugs in helper scripts
temporarily exclude CNVs
changes to adapt to new VCFs from latest datafreeze
return de novos checking correctly
unit tested the new de novo filtering, beter check if the proband has parents
account for multi-allele consequences, drop consequences from alleles with AC=0
 - account for multiple HGNC symbols from multiple alt alleles
   - compensate for zero deph alleles
 - account for deprecated HGNC symbols, optionally load a file defining symbols
updated unit test due to fixing bug when counting processed families