- Delete header on conflict to prompt data refresh (cascade deletes all
data associated with that block)
- Derive header hash from rpc payload rather than computing it from data
(prevents hash mismatch between blockchain and cache)
* Use transformer factory for Bite
- introduces separate transformer factory for non-LogNote events
- converter includes `ToEntities` for events defined via ABI
* Updates after rebasing with staging
* Deal integration test
* Add LogIndex to CatFileChopLump to update unique constraint
* Add LogIndex to cat_file_pit_vow records
* Add integration tests for Cat.file transformers
* Add log index to Cat.file flip
