feat: add eip7782

[morph-dev]

Add support for EIP-7782 (6-seconds slots).

This is first version based on:

• Consensus spec PR (in-progress)
• My prototyping in geth: https://github.com/morph-dev/go-ethereum/tree/eip7782

Adds following to genesis.json:

{
  "config": {
    "eip7782Time": 123456,
    "blobSchedule": {
      "eip7782": {
        "target": 3,
        "max": 4,
        "baseFeeUpdateFraction": 10015432
      }
    }
  }
}

And following values to consensus config:

EIP7782_FORK_VERSION: 0x0b000000 
EIP7782_FORK_EPOCH: 18446744073709551615

SLOT_DURATION_MS_EIP7782: 6000
ATTESTATION_DUE_BPS_EIP7782: 5000
AGGREGRATE_DUE_BPS_EIP7782: 7500
SYNC_MESSAGE_DUE_BPS_EIP7782: 3333
CONTRIBUTION_DUE_BPS_EIP7782: 6667

MIN_PER_EPOCH_CHURN_LIMIT_EIP7782: 64000000000
MAX_PER_EPOCH_ACTIVATION_EXIT_CHURN_LIMIT_EIP7782: 128000000000

BLOB_SCHEDULE:
  - EPOCH: 18446744073709551615  # EIP7782_FORK_EPOCH
    MAX_BLOBS_PER_BLOCK: 3

Note: This is my first time using and contributing to this repo, so double-check my work. Especially regarding Blob Schedule configuration.

[morph-dev]

Closing this PR until CL and EL spec updates are merged.