ledger-tool cleanup and additions (#15179)

* Plumb allow-dead-slots to ledger-tool verify

* ledger-tool cleanup and add some useful missing args

Print root slots and how many unrooted past last root.

core/src/replay_stage.rs

@@ -1010,6 +1010,7 @@ impl ReplayStage {
             Some(replay_vote_sender),
             None,
             verify_recyclers,
+            false,
         );
         let tx_count_after = bank_progress.replay_progress.num_txs;
         let tx_count = tx_count_after - tx_count_before;