Pectra upgrade

[sorpaas]

Tracking issue for Pectra upgrade:

• EIP-2537: Precompile for BLS12-381 curve operations
• EIP-2935: Save historical block hashes in state
• EIP-6110: Supply validator deposits on chain
• EIP-7002: Execution layer triggerable exits
• EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
• EIP-7549: Move committee index outside Attestation
• EIP-7623: Increase calldata cost
• EIP-7685: General purpose execution layer requests
• EIP-7691: Blob throughput increase
• EIP-7702: Set EOA account code
• EIP-7840: Add blob schedule to EL config files (Informational)
• EIP-7642: eth/69 - Drop pre-merge fields (Networking)

[RomarQ]

@sorpaas for EIP-2537, we should port the changes from frontier: https://github.com/polkadot-evm/frontier/tree/7b058d322b93712daf080e997bc0e4c4b00b21fb/frame/evm/precompile/bls12381

[RomarQ]

For EIP-7702, it was added here #323. Still needs to be ported to master

[RomarQ]

For EIP-7623, it is currently in progress: #389