* Rpc: support extended config for getConfirmedBlock (#15827)
* Add rpc confirmed-block config wrapper to support struct of extended config
* Update docs
* Make config wrapper generic and use in getConfirmedTransaction as well
* Update/clean confirmed-tx docs
(cherry picked from commit 5b2da19c93)
# Conflicts:
# core/src/rpc.rs
* Fix conflicts
Co-authored-by: Tyera Eulberg <teulberg@gmail.com>
Co-authored-by: Tyera Eulberg <tyera@solana.com>