ethexe: support guaranties to the codes validation

[grishasobol]

Problem to Solve

Currently if some code commitment would not applied by some reasons, then validators would not try to resend this commitment to sequencer. They would simply forget about this commitment and continue to work.

We need to give some guaranties to users that if they sent code for validation then soon or later this code would be validated.

Possible Solution

We have already mechanism like this for block commitments: validator tries to resent not applied block commitments each new block. May be we can make the same for codes:

1. Store and propagate not committed codes queue in database.
2. Each new block try to resend all code commitments in the queue.

Notes

No response