Remove old variant code and add new Genotype predicate for passing filter
Test suite for new Genotype predicate
Test cases for new variant schema updates and test data changes
Merge branch 'vcf-work-schema' into vcf-work-remove-old-variant
Merge branch 'vcf-work' into vcf-work-remove-old-variant
Code review updates
Merge pull request #98 from nealsid/vcf-work-remove-old-variant

Vcf work remove old variant