* Implement validator endpoints
* Import
* Fix errors
* Add comments and fix naming :wq
* Fix functions to access state once
* Optimization for slots
* Test more
* Fix
* test listing committees for specific epoch
* Fix error retrurn
Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: rkapka <rkapka@wp.pl>