Add bank timestamp bounding (bp #13120) (#13331)

* Add bounding feature

(cherry picked from commit 96b8aa8bd1)

* Repurpose unused as Clock::epoch_start_timestamp; add gated update

(cherry picked from commit 0049ab69fb)

* Add bounded timestamp-estimation method

(cherry picked from commit 80db6c0980)

* Use bounded timestamp-correction when feature enabled

(cherry picked from commit 90778615f6)

* Prevent block times from ever going backward

(cherry picked from commit eb2560e782)

* Sample votes from ancestors back to root

(cherry picked from commit 4260b3b416)

* Add Clock sysvar details, update struct docs

(cherry picked from commit 3a1e125ce3)

* Add design proposal and update validator-timestamp-oracle

(cherry picked from commit a3912bc084)

* Adapt to feature::create_account

Co-authored-by: Tyera Eulberg <tyera@solana.com>
Co-authored-by: Michael Vines <mvines@gmail.com>

sdk/src/feature_set.rs

@@ -78,6 +78,10 @@ pub mod pull_request_ping_pong_check {
     solana_sdk::declare_id!("5RzEHTnf6D7JPZCvwEzjM19kzBsyjSU3HoMfXaQmVgnZ");
 }
 
+pub mod timestamp_bounding {
+    solana_sdk::declare_id!("8FyEA6ABYiMxX7Az6AopQN3mavLD8Rz3N4bvKnbbBFFq");
+}
+
 lazy_static! {
     /// Map of feature identifiers to user-visible description
     pub static ref FEATURE_NAMES: HashMap<Pubkey, &'static str> = [
@@ -99,6 +103,7 @@ lazy_static! {
         (sol_log_compute_units_syscall::id(), "sol_log_compute_units syscall (#13243)"),
         (pubkey_log_syscall_enabled::id(), "pubkey log syscall"),
         (pull_request_ping_pong_check::id(), "ping-pong packet check #12794"),
+        (timestamp_bounding::id(), "add timestamp-correction bounding #13120"),
         /*************** ADD NEW FEATURES HERE ***************/
     ]
     .iter()