chore: show smt is loading (#6313)

Description
---
Show smt is loading into memory

Motivation and Context
---
atm when you start the node, it looks like it crahsed or hanged. 

How Has This Been Tested?
---
manual

base_layer/core/src/chain_storage/blockchain_database.rs

@@ -274,7 +274,9 @@ where B: BlockchainBackend
         } else {
             // lets load the smt into memory
             let mut smt = blockchain_db.smt_write_access()?;
+            warn!(target: LOG_TARGET, "Loading SMT into memory from stored db");
             *smt = blockchain_db.db_write_access()?.calculate_tip_smt()?;
+            warn!(target: LOG_TARGET, "Finished loading SMT into memory from stored db");
         }
         if config.cleanup_orphans_at_startup {
             match blockchain_db.cleanup_all_orphans() {