Final EVS Reader
Added VariantJsonDataWriter
Added Source to JsonWriter
New VariantMongoControlAnnotator. VariantVcfDataWRiter now writes Vcflines. Annotatos check if getEffects is not null before processing variants (if effect is null then calls EffectCalculator
Added VariantRetainFilter
Minor changes
Added polyphenSift Annotator
Merge branch 'feature/evs' into develop
Merge branch 'feature/jsonWriter' into develop
Merge branch 'feature/polyphenSIFTAnnot' into develop