* Process atts and updeate head
* Fix ctx
* New test and old tests
* Update validator_test.go
* Update validator_test.go
* Update service.go
* Rename to UpdateHead
* Update receive_attestation.go
* Update receive_attestation.go
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
* new stategen.StateReplayer/ReplayerBuilder to give more fine-grained
control of replaying state+block history
* all rpc/api methods updated to use the new interface, return post-state
Co-authored-by: Kasey Kirkham <kasey@users.noreply.github.com>
Co-authored-by: Radosław Kapka <rkapka@wp.pl>
Co-authored-by: terence tsao <terence@prysmaticlabs.com>