refactor!: don't redefine types in multiple crates

- removes ethereum-consensus
- lodestar-rpc -> beacon-api, now consuming types from ibc-types (which
  should probably be renamed, now that it's not just ibc types)
- removes type definitions from ethereum-verifier and
  ethereum-light-client in favor of those provided in ibc-types
- a bunch of other stuff

chore: spelling and formatting

fix: patch typenum and fix ibc-types k256 transient dep features

fix: feature gate contracts in ibc-types

feat: initial beacon-api tests

feat: fix a bunch of stuff with dependencies

and also clippy (i should really commit more often)

chore: remove empty derive crate