core: implement EIP-7701, native account abstraction

[lightclient]

This is a rough, initial sketch of the core changes for EIP-7701. The following spec questions remain:

• pseudocode doesn't check if tx.deployer is non-nil when sender has no code
• should CallWithRole be able to pass data instead of using txparam?
• roles and top level access to tx params will make it easy to discriminate against AA txs, is this an issue?
• what is the point of returning data from different roles? isn't accepting the role sufficient?
• accept role should take the role as stack element (not really defined yet)
• should remove authList from 7701 tx type
• need to define opcode for instructions CURRENTROLE and ACCEPTROLE
  • define gas for ops
• how does 7701 interplay with 7623
• doesn't define what happens when param id is out of bounds
• tx_hash_for_signature not defined
• access list and auth list hashes not defined in tx param

[lightclient]

Really dislike these fields, will find a cleaner way to expose this data. Mostly need to decide if we will repurpose Data and GasLimit for this and make separate SenderExecutionData and SenderExecutionGas to fulfill their current role.