MEV support

[nkryuchkov]

Supersedes #177, #163

Spec part of ssvlabs/ssv#918

[GalRogozinski]

Hey @nkryuchkov

For this to merge I have 2 requests:

1. Start using state comparison feature on tests that you change/add. Here is a random example: State comparison - QBFT proposal #210. Feel free to contact me to understand better.
2. We want to have small PRs. Can you create a branch on this repo and do maybe 2 PRs to this branch? Later we will PR the big branch to main

Thanks!

[nkryuchkov]

Hey @GalRogozinski

1. I'll check State comparison - QBFT proposal #210
2. I think I could extract just a few line changes that are not directly related to MEV, but the rest looks to me like something whole. Why do you think the PR is not small enough? It's 109 changed lines now

[y0sher]

Approved. some minor comments.

[GalRogozinski]

Initial review

[GalRogozinski]

Initial review

[GalRogozinski]

@nkryuchkov
I think that for all tests in the preconsensus folder that are for "validator registration" we should add
BeaconBroadcastedRoots: []string{ testingutils.GetSSZRootNoError(testingutils.TestingValidatorRegistration), }

[GalRogozinski]

@alonmuroch
If we change DefaultGasLimit to 1, the roots stay the same.

[GalRogozinski]

@alonmuroch
Could you shed light on the purpose of preconsensus/unordered_expected_roots tests? It looks the same as valid_msg?

[alonmuroch]

@alonmuroch
Could you shed light on the purpose of preconsensus/unordered_expected_roots tests? It looks the same as valid_msg?

just checking roots not ordered, should pass as a valid msg