* implement ParquetQueryFilter types
* implement parquetQuery filter tests
* implement parquetQuery filter
* filter before ordering
* apply filters before sorting/slicing
* format types
* add deep equality utility
* document and format equals utility
* use deep equality checks
* update filter tests
* support more types for equality
* make $not unary
* ensure arrays are correctly compared
* support both forms of $not
* add operator tests
* Filter operator tests
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Co-authored-by: Brian Park <park-brian@users.noreply.github.com>
Co-authored-by: Kenny Daniel <platypii@gmail.com>
