Utilize Bitmap Indexer for Historical Backfill

[darunrs]

This Issue tracks work needed to fully implement the Bitmap indexer as a source of block heights to perform historical backfill on.

Tasks

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1. Integrate graphQL Querying into Block Streamer #741
   +0
   
2. Implement Bitmap Operations into Block Streamer #742
   +0
   
3. Implement stream which yields block heights given bitmap #743
   component: Streamer +1
   
4. Replace Index File Backfill with Bitmap Indexer Backfill #744
   component: Streamer +1