* Generate SSZ code for `BeaconBlockContainerV2`
* new line at end of file
* remove unneeded V2 suffix
* more fun stuff
# Conflicts:
# proto/eth/v1/generated.ssz.go
* rename Altair to V2
* Clean up v1 protos
# Conflicts:
# proto/eth/v1/generated.ssz.go
* A little more cleanup
# Conflicts:
# proto/eth/v1/generated.ssz.go
* fix java class names