V0.8.3 tests part2 - BLS + Shuffling + State transition epoch

[mratsim]

This PR:

• updates the fixtures to 0.8.3
• updates BLS tests to 0.8.3
• updates Shuffling tests to 0.8.3
• Adds all state transition for epoch process:
  • Justification & Finalization - PASSED
  • Crosslinks - PASSED
  • Registry Updates - PASSED
  • Slashings - FAILED Passing
  • Final updates - FAILED

Failed tests are deactivated at the moment.

Edit: I've also added a deep inspection macro that pinpoints all the fields in a BeaconState that are different.

[mratsim]

Fixed the slashings tests

For final updates it's not trivial from looking at the spec, would have to inspect the fields individually.

There is at least this change that has to be done:
https://github.com/status-im/nim-beacon-chain/blob/1ec4c5aef7a8db64e9a694d30158745bbec68566/beacon_chain/spec/state_transition_epoch.nim#L485

to

indices_list = sszList(get_active_validator_indices(state, index_epoch), VALIDATOR_REGISTRY_LIMIT)

[mratsim]

I've added a deep inspection macro for BeaconState reportDiff.

It reports precisely the fields that are different between 2 states (note: there won't be bold)

For instance for final_updates/compact_committees_root
stateRef.active_index_roots == postRef.active_index_roots Diff: stateRef.active_index_roots = [BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, 16E7DA2912B78AE1AA7558D8927DF8D3B35E2B039AF9E7C80E6B7269403C0E4B, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, ...,
BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63]
and postRef.active_index_roots = [BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63, ..., BA1031BA1A5DAAB0D49597CFA8664CE2B4C9B4DB6CA69FBEF51E0A9A325A3B63]
[AssertionError]