This adds support for the Deneb beacon chain fork, and fork handling in general, to the beacon chain light client implementation. Co-authored-by: Zsolt Felfoldi <zsfelfoldi@gmail.com>
* beacon/types: add beacon chain data types * beacon/merkle: added comments * go.mod: cleanups --------- Co-authored-by: Péter Szilágyi <peterke@gmail.com>