Moved delim to be format specific
Moved readLines from PivotSpec to Reference
Add EAV extraction format
Update docs
Merge pull request #304 from ambiata/topic/eav-extract-format

Sparse extract format
Extract parsePrimitive to Value
Extract DictionaryTextStorageV2 parseEncoding
Support basic filtering for virtual features
Introduce Query as holder of Expression and Filter
Specialise FilterReductionExpression
fixup! Introduce Query as holder of Expression and Filter