Store address table lookups in blockstore and bigtable (#22402)

sdk/program/src/message/versions/mod.rs

@@ -71,6 +71,24 @@ impl VersionedMessage {
         }
     }
 
+    pub fn total_account_keys_len(&self) -> usize {
+        match self {
+            Self::Legacy(message) => message.account_keys.len(),
+            Self::V0(message) => message.account_keys.len().saturating_add(
+                message
+                    .address_table_lookups
+                    .iter()
+                    .map(|lookup| {
+                        lookup
+                            .writable_indexes
+                            .len()
+                            .saturating_add(lookup.readonly_indexes.len())
+                    })
+                    .sum(),
+            ),
+        }
+    }
+
     pub fn recent_blockhash(&self) -> &Hash {
         match self {
             Self::Legacy(message) => &message.recent_blockhash,
@@ -85,6 +103,13 @@ impl VersionedMessage {
         }
     }
 
+    pub fn instructions(&self) -> &[CompiledInstruction] {
+        match self {
+            Self::Legacy(message) => &message.instructions,
+            Self::V0(message) => &message.instructions,
+        }
+    }
+
     pub fn serialize(&self) -> Vec<u8> {
         bincode::serialize(self).unwrap()
     }