* Initialize fork graph in program cache during bank_forks creation
* rename BankForks::new to BankForks::new_rw_arc
* fix compilation
* no need to set fork_graph on insert()
* fix partition tests
* remove unnecessary hashes around raw string literals
* remove unncessary literal `unwrap()`s
* remove panicking `unwrap()`
* remove unnecessary `unwrap()`
* use `[]` instead of `vec![]` where applicable
* remove (more) unnecessary explicit `into_iter()` calls
* remove redundant pattern matching
* don't cast to same type and constness
* do not `cfg(any(...` a single item
* remove needless pass by `&mut`
* prefer `or_default()` to `or_insert_with(T::default())`
* `filter_map()` better written as `filter()`
* incorrect `PartialOrd` impl on `Ord` type
* replace "slow zero-filled `Vec` initializations"
* remove redundant local bindings
* add required lifetime to associated constant
In most cases, either a &Bank or an Arc<Bank> is more proper.
- &Bank is used if the function only needs a momentary reference
- Arc<Bank> is used if the function needs its' own copy
This PR leaves several instances of &Arc<Bank> around; these instances
are situations where a clone may only happen conditionally.
* Plumb priority_fee_cache into rpc
* Add PrioritizationFeeCache api
* Add getRecentPrioritizationFees rpc endpoint
* Use MAX_TX_ACCOUNT_LOCKS to limit input keys
* Remove unused cache apis
* Map fee data by slot, and make rpc account inputs optional
* Add priority_fee_cache to rpc test framework, and add test
* Add endpoint to jsonrpc docs
* Update docs/src/developing/clients/jsonrpc-api.md
* Update docs/src/developing/clients/jsonrpc-api.md