Refactor: consolidate memo extraction for each message version (#22422) (#22435)

(cherry picked from commit 35a5dd9c45)

Co-authored-by: Justin Starry <justin@solana.com>

transaction-status/benches/extract_memos.rs

@@ -0,0 +1,33 @@
+#![feature(test)]
+
+extern crate test;
+
+use {
+    solana_sdk::{instruction::CompiledInstruction, message::Message, pubkey::Pubkey},
+    solana_transaction_status::extract_memos::{spl_memo_id_v1, spl_memo_id_v3, ExtractMemos},
+    test::Bencher,
+};
+
+#[bench]
+fn bench_extract_memos(b: &mut Bencher) {
+    let mut account_keys: Vec<Pubkey> = (0..64).map(|_| Pubkey::new_unique()).collect();
+    account_keys[62] = spl_memo_id_v1();
+    account_keys[63] = spl_memo_id_v3();
+    let memo = "Test memo";
+
+    let instructions: Vec<_> = (0..20)
+        .map(|i| CompiledInstruction {
+            program_id_index: 62 + (i % 2),
+            accounts: vec![],
+            data: memo.as_bytes().to_vec(),
+        })
+        .collect();
+
+    let message = Message {
+        account_keys,
+        instructions,
+        ..Message::default()
+    };
+
+    b.iter(|| message.extract_memos());
+}