(LedgerStore) Use different path for different blockstore storage type. (#23236)

#### Summary of Changes
To avoid mixing the use of different shred storage types, each shred storage type
will have its blockstore in a different directory.

This PR still keeps the RocksFifo setting hidden.  The default ShredStorageType and
blockstore directory are still RocksLevel and `rocksdb`.

Will follow-up with PRs on making FIFO option public in ledger-tool and validator.

#### Test Plan
* Added a new test to verify the existence of `rocksdb-fifo` directory when FIFO compaction is used.
* Updated existing test to verify the current setting still store ledger under `rocksdb` directory.
* Manually ran ledger_cleanup_test with both level and fifo compaction and verified the resulting ledger.
* Ran a validator with this PR.

ledger-tool/src/main.rs

@@ -23,7 +23,9 @@ use {
         ancestor_iterator::AncestorIterator,
         bank_forks_utils,
         blockstore::{create_new_ledger, Blockstore, PurgeType},
-        blockstore_db::{self, AccessType, BlockstoreOptions, BlockstoreRecoveryMode, Database},
+        blockstore_db::{
+            self, AccessType, BlockstoreOptions, BlockstoreRecoveryMode, Database, ShredStorageType,
+        },
         blockstore_processor::ProcessOptions,
         shred::Shred,
     },
@@ -1715,6 +1717,7 @@ fn main() {
                     &genesis_config,
                     solana_runtime::hardened_unpack::MAX_GENESIS_ARCHIVE_UNPACKED_SIZE,
                     AccessType::PrimaryOnly,
+                    ShredStorageType::default(),
                 )
                 .unwrap_or_else(|err| {
                     eprintln!("Failed to write genesis config: {:?}", err);