perf spec passes
WIP broken
WIP perf works
parallel scans for replay
does not replay all somehow
key improvements
scanning and deleting is nice and working
keyfixes
WIP-ranges
deletes now have wrong keys, moved to 50 key
Fixed rannges, for perfspec
resequencer can now sequence from a lower bound
resequencing with MAX count works
0 replay case
starting resequencing from a range deleted journal works
replaying of marked-as-deleted messages (on demand)
parallel max seq nr finding

TODO: snapshot store fails