Gloas(EIP-7732): Containers / Constants (#7923)

* #7850

This is the first round of the conga line! 🎉

Just spec constants and container changes so far.


  


Co-Authored-By: shane-moore <skm1790@gmail.com>

Co-Authored-By: Mark Mackey <mark@sigmaprime.io>

Co-Authored-By: Shane K Moore <41407272+shane-moore@users.noreply.github.com>

Co-Authored-By: Eitan Seri- Levi <eserilev@gmail.com>

Co-Authored-By: ethDreamer <37123614+ethDreamer@users.noreply.github.com>

Co-Authored-By: Jimmy Chen <jchen.tc@gmail.com>

Co-Authored-By: Jimmy Chen <jimmy@sigmaprime.io>

Co-Authored-By: Michael Sproul <michael@sigmaprime.io>

beacon_node/beacon_chain/src/errors.rs

@@ -320,6 +320,8 @@ pub enum BlockProductionError {
     FailedToBuildBlobSidecars(String),
     MissingExecutionRequests,
     SszTypesError(ssz_types::Error),
+    // TODO(gloas): Remove this once Gloas is implemented
+    GloasNotImplemented,
 }
 
 easy_from_to!(BlockProcessingError, BlockProductionError);