add references to the reporter object of the filters and interpreters used
first pass at simple vcf reporter
vcf entry interpreter and plan file needed for vcf reporter
implement how to add interpretations to the info field
Use list of filters given in the CLE specifications

- add vcf_id and vcf_description subroutines to each of the filters used
- update requires_interpreters list
- update plan file
update ContainsTagFilter to not use custom available_fields anymore
minor refactor to make testing easier
test for VcfReporter
Merge branch 'variant_reporting_simple_vcf'
basic index illumina replacement