Allow easy use of new EF Minimal specs. #227
Description
EF is starting to use (on devnet tests) minimal specs instead of the usual main net specs to speed up everything.
These changes impact on the ssz definitions that are used to compute the hash that is used to sign bids on mev-boost-relay (eg: https://github.com/flashbots/mev-boost-relay/blob/344d5b67d5940b2bd4e462d790858dd05a445fdc/common/types_spec.go#L188).
It would be great to have simple out of the box support for those minimal specs.
Examples of related code:
- https://github.com/attestantio/go-eth2-client/blob/master/spec/electra/executionrequests.go.
I'm not sure how to use the dynssz-max but it would be great to have out of the box the version with the minimal constants. - https://github.com/attestantio/go-builder-client/blob/master/api/electra/builderbid.go#L29 (brother repo)
I believe that in minimal specs for BlobKZGCommitments change from 4096 to 32 and here we don't even have the dynssz.