Add quality and filters close #219

[david4096]

Updates the work presented by @heuermh in #304 and @johntbates in #220 to protobuf. Includes the filters_passed field as suggested by @fnothaft

Closes #219

[david4096]

Bump, this will close a couple of open PRs that fulfill the same functionality.

[kozbo]

+1

[heuermh]

-0

We decided to go a different way in bdg-formats, in avro schema

  /**
   True if filters were applied for this variant. VCF column 7 "FILTER" any value other
   than the missing value.
   */
  union { null, boolean } filtersApplied = null;

  /**
   True if all filters for this variant passed. VCF column 7 "FILTER" value PASS.
   */
  union { null, boolean } filtersPassed = null;

  /**
   Zero or more filters that failed for this variant. VCF column 7 "FILTER" shared across
   all alleles in the same VCF record.
   */
  array<string> filtersFailed = [];

[david4096]

Closing in favor of #777