Initial merge changes

Added Execution Payload from Rayonism Fork

Updated new Containers to match Merge Spec

Updated BeaconBlockBody for Merge Spec

Completed updating BeaconState and BeaconBlockBody

Modified ExecutionPayload<T> to use Transaction<T>

Mostly Finished Changes for beacon-chain.md

Added some things for fork-choice.md

Update to match new fork-choice.md/fork.md changes

ran cargo fmt

Added Missing Pieces in eth2_libp2p for Merge

fix ef test

Various Changes to Conform Closer to Merge Spec

consensus/state_processing/src/per_block_processing/errors.rs

@@ -57,6 +57,26 @@ pub enum BlockProcessingError {
     ArithError(ArithError),
     InconsistentBlockFork(InconsistentFork),
     InconsistentStateFork(InconsistentFork),
+    ExecutionHashChainIncontiguous {
+        expected: Hash256,
+        found: Hash256,
+    },
+    ExecutionBlockNumberIncontiguous {
+        expected: u64,
+        found: u64,
+    },
+    ExecutionRandaoMismatch {
+        expected: Hash256,
+        found: Hash256,
+    },
+    ExecutionInvalidGasLimit {
+        used: u64,
+        limit: u64,
+    },
+    ExecutionInvalidTimestamp {
+        expected: u64,
+        found: u64,
+    },
 }
 
 impl From<BeaconStateError> for BlockProcessingError {