* begin indices approach
* use shard bucket
* continue the indices approach
* eliminate the filter checkers in favor of the single loop of root lookups
* elim extraneous println statement
* continue the indices approach
* intersection for multiple filter types works, but is complex, verbose, and nearly unreadable
* remove unused code
* table drive tests for byte slice intersections
* include all table driven tests
* gazelle imports
* better abstractions
* better comments
* variadic approach working
* transform to variadic
* comments
* comments
* separate bucket for indices for faster range scans
* attestation key as hash tree root of data and different indices buckets
* test pass
* default behavior without filter
* appropriate filter criterion errors if criterion does not apply to type
* better abstractions and prune keys on deletion
* better naming
* fix build
* fix build
* rem extraneous code
