* Add block height to ConfirmedBlock structs (#17523)
* Add BlockHeight CF to blockstore
* Rename CacheBlockTimeService to be more general
* Cache block-height using service
* Fixup previous proto mishandling
* Add block_height to block structs
* Add block-height to solana block
* Fallback to BankForks if block time or block height are not yet written to Blockstore
* Add docs
* Review comments
(cherry picked from commit ab581dafc2)
# Conflicts:
# core/src/replay_stage.rs
# core/src/tvu.rs
# core/src/validator.rs
* Fix conflicts
Co-authored-by: Tyera Eulberg <teulberg@gmail.com>
Co-authored-by: Tyera Eulberg <tyera@solana.com>
01e2d5cd35