* Fixed missing Root notifications via geyser plugin framework
* Renamed a variable
* fmt issue
* Do not try the loop if no subscribers.
* Addressing some feedback -- passing parent roots from replay_stage to avoid race conditions
* clippy issue
* Address some reviewing findings
* Addressed some feedback from Carl
* fix a clippy issue
* Added comments on optimistically_confirmed_bank_tracker module to explain the workflow
* Addressed Trent's review