Reconstruct Payloads using Payload Bodies Methods (#4028)

## Issue Addressed

* #3895 

Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>

beacon_node/beacon_chain/src/lib.rs

@@ -2,6 +2,7 @@ pub mod attestation_rewards;
 pub mod attestation_verification;
 mod attester_cache;
 pub mod beacon_block_reward;
+mod beacon_block_streamer;
 mod beacon_chain;
 mod beacon_fork_choice_store;
 pub mod beacon_proposer_cache;