feat(core/types): Header hook PostCopy

[qdm12]

Why this should be merged

Introduce header copy hooks to get rid of core/types.CopyHeader in coreth and subnet-evm

How this works

Header copy hooks 🎉

How this was tested

• Tested in chore(core/types): Header libevm PostCopy hook (5) coreth#759
• Needs to be unit tested

[ARR4N]

Why not merge into main? Is there a reason to batch PRs for a later re-review and merge?

[qdm12]

Why not merge into main?

I needed the fixes of darioush/libevm-phase-2.5 to make it work in coreth. How are we planning to handle the few fix commits in darioush/libevm-phase-2.5 in the end?

Is there a reason to batch PRs for a later re-review and merge?

Not at all, I would rather not 😉

[ARR4N]

Approved with minor suggestions that don't require re-review

[ARR4N]

Why not merge into main?

I needed the fixes of darioush/libevm-phase-2.5 to make it work in coreth. How are we planning to handle the few fix commits in darioush/libevm-phase-2.5 in the end?

Is there a reason to batch PRs for a later re-review and merge?

Not at all, I would rather not 😉

Was it only the change to the legacy package that's absolutely required? If so, can you please open another PR and take a closer look re avoiding gas refunds I mentioned on DM?

[qdm12]

Gas fix for branch darioush/libevm-phase-2.5 is in its PR #114