Add dependency on Slice to presto-hive
Rename HashJoinOperator => LookupJoinOperator
Rename JoinHash to LookupSource

This is preparation for adding index joins

Extract LookupSourceSupplier from HashSupplier
Rename HashSupplier to SettableLookupSupplier
Change position from int to long in LookupSource
Add support for index joins
Add unit tests for index joins