Add vote instructions that directly update on chain vote state (#21531)

* Add vote state instructions

UpdateVoteState and UpdateVoteStateSwitch

* cargo tree

* extract vote state version conversion to common fn

gossip/src/cluster_info.rs

@@ -1042,7 +1042,7 @@ impl ClusterInfo {
                 "invalid vote index: {}, switch: {}, vote slots: {:?}, tower: {:?}",
                 vote_index,
                 hash.is_some(),
-                vote.slots,
+                vote.slots(),
                 tower
             );
         }

gossip/src/crds_value.rs

@@ -306,8 +306,8 @@ impl Sanitize for Vote {
 
 impl Vote {
     pub fn new(from: Pubkey, transaction: Transaction, wallclock: u64) -> Self {
-        let slot = parse_vote_transaction(&transaction)
-            .and_then(|(_, vote, _)| vote.slots.last().copied());
+        let slot =
+            parse_vote_transaction(&transaction).and_then(|(_, vote, _)| vote.last_voted_slot());
         Self {
             from,
             transaction,