Add Badger Hardfork: `BeaconStateBadger`, `BeaconBlockBadger` #156

Job	Run time
unit-tests (//api/...) / run-tests	7m 55s
unit-tests (//async/...) / run-tests	7m 54s
unit-tests (//beacon-chain/...) / run-tests	20m 32s
unit-tests (//build/...) / run-tests	5m 36s
unit-tests (//cache/...) / run-tests	5m 53s
unit-tests (//cmd/...) / run-tests	6m 43s
unit-tests (//config/...) / run-tests	8m 29s
unit-tests (//consensus-types/...) / run-tests	5m 43s
unit-tests (//container/...) / run-tests	6m 26s
unit-tests (//contracts/...) / run-tests	7m 49s
unit-tests (//crypto/...) / run-tests	6m 17s
unit-tests (//encoding/...) / run-tests	7m 24s
unit-tests (//io/...) / run-tests	5m 35s
unit-tests (//math/...) / run-tests	5m 27s
unit-tests (//monitoring/...) / run-tests	6m 30s
unit-tests (//network/...) / run-tests	6m 12s
unit-tests (//proto/...) / run-tests	8m 55s
unit-tests (//runtime/...) / run-tests	7m 10s
unit-tests (//testing/...) / run-tests	8m 21s
unit-tests (//time/...) / run-tests	5m 49s
unit-tests (//third_party/...) / run-tests	5m 25s
unit-tests (//tools/...) / run-tests	7m 9s
unit-tests (//validator/...) / run-tests	9m 54s
	2h 53m 8s

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