Replayer test in epoch 1

[psteckler]

Update the replayer test data to use the mainnet archive db, dumped in epoch 1, around slot 7542.

The db had to be patched to handle the swapped balances in combined fee transfers. In the replayer, there's some additional logging to help find those errors.

For combined fee transfers, verify the balances for both receivers, not just one of them.

Improved a log for the extract_blocks app.

How the db was patched:

• run the replayer, modified to not exit on failures, on the db, save the logs
• use extract_blocks to get extensional blocks from the db
• edit the extensional blocks to re-swap balances where errors were reported
• delete the affected blocks from the db:
  for affected blocks with a given state_hash
  • UPDATE blocks SET parent_id = NULL WHERE parent_hash = state_hash
  • DELETE FROM blocks where state_hash = state_hash
• re-create those blocks using archive_blocks
• verify the integrity of the db using the unmodified replayer

After this procedure, there is some orphan data in the db, like unused balances. The orphan data is, well, orphaned, so it's not connected to any blocks.