## Proposed Changes
Implement the consensus changes necessary for the upcoming Altair hard fork.
## Additional Info
This is quite a heavy refactor, with pivotal types like the `BeaconState` and `BeaconBlock` changing from structs to enums. This ripples through the whole codebase with field accesses changing to methods, e.g. `state.slot` => `state.slot()`.
Co-authored-by: realbigsean <seananderson33@gmail.com>
* Start adding interop genesis state to lcli
* Use more efficient method to generate genesis state
* Remove duplicate int_to_bytes32
* Add lcli command to change state genesis time
* Add option to allow VC to start with unsynced BN
* Set VC to do parallel key loading
* Don't default to dummy eth1 backend
* Add endpoint to dump operation pool
* Add metrics for op pool
* Remove state clone for slot notifier
* Add mem size approximation for tree hash cache
* Avoid cloning tree hash when getting head
* Fix failing API tests
* Address Michael's comments
* Add HashMap::from_par_iter