feat: add flz

[mattsse]

adds standalone flz repo

this could eventually be converted into a standalone crate, if revm is willing to import that and remove code dup

[clabby]

LGTM.

We'd also like to have revm-optimism (which is a standalone crate, post-refactor on revm's main branch) consume maili for the L1Block type. What do you think about that? Right now it has its own, duplicated impl.

We discussed with Dragan last week, and he said it was fine, so long as we moved the revm-optimism crate outside of the revm repository.

[mattsse]

you we faced some opposition getting standalone alloy deps included in revm, if this would be a standalone thing then this would be easier

[clabby]

you we faced some opposition getting standalone alloy deps included in revm, if this would be a standalone thing then this would be easier

Sounds good - yeah, we covered that. The idea was as you said, if it's a standalone extension, it's less of a big deal + won't impact the release flow for L1.