* Decouple Segments from Turns in Storage
* Get replicator local cluster tests running in a reasonable amount of time
* Fix unused imports
* Document new RPC APIs
* Check for exit while polling
* change consecutive leader slots to 4
* reduce polling frequency for transaction signature confirmation
* adjust wait time for transaction signature confirmation
* fix nominal test
* fix flakiness in wallet pay test
* Remove unused PohServiceConfig::Step
* Clarify variable name
* Poh::hash() now takes an iteration counter
* man -> max
* Inline functions with single call site
* Move PohServiceConfig into GenesisBlock
* Add plumbing to enable real PoH on testnets
* Batch hashes to improve PoH hash rate
* Ensure a constant hashes_per_tick
* Remove PohEntry mixin field
* Poh/PohEntry no longer maintains tick_height
* Ensure a constant hashes_per_tick
* ci/localnet-sanity.sh: Use real PoH
* Rework Poh/PohService to keep PohRecorder unlocked as much as possible while hashing
* wake up replay stage when the poh bank is cleared
* bump ticks per second
* Increase ticks per slot to match faster tick rate
* Remove check that working bank must be the bank for the greatest slot
* Make start_leader() skip starting TPU for slots we've already been leader for
