Changes for devnet-8 (#4518)

* Addressed #4487

Add override threshold flag
Added tests for Override Threshold Flag
Override default shown in decimal

* Addressed #4445

Addressed Jimmy's Comments
No need for matches
Fix Mock Execution Engine Tests
Fix clippy
fix fcuv3 bug

* Fix Block Root Calculation post-Deneb

* Addressed #4444

Attestation Verification Post-Deneb
Fix Gossip Attestation Verification Test

* Addressed #4443

Fix Exit Signing for EIP-7044
Fix cross exit test
Move 7044 Logic to signing_context()

* Update EF Tests

* Addressed #4560

* Added Comments around EIP7045

* Combine Altair Deneb to Eliminate Duplicated Code

testing/ef_tests/src/cases/operations.rs

@@ -11,7 +11,7 @@ use state_processing::{
         errors::BlockProcessingError,
         process_block_header, process_execution_payload,
         process_operations::{
-            altair, base, process_attester_slashings, process_bls_to_execution_changes,
+            altair_deneb, base, process_attester_slashings, process_bls_to_execution_changes,
             process_deposits, process_exits, process_proposer_slashings,
         },
         process_sync_aggregate, process_withdrawals, VerifyBlockRoot, VerifySignatures,
@@ -103,7 +103,14 @@ impl<E: EthSpec> Operation<E> for Attestation<E> {
             | BeaconState::Capella(_)
             | BeaconState::Deneb(_) => {
                 initialize_progressive_balances_cache(state, None, spec)?;
-                altair::process_attestation(state, self, 0, &mut ctxt, VerifySignatures::True, spec)
+                altair_deneb::process_attestation(
+                    state,
+                    self,
+                    0,
+                    &mut ctxt,
+                    VerifySignatures::True,
+                    spec,
+                )
             }
         }
     }