Implements eip-7708

[mralj]

Implements: https://eips.ethereum.org/EIPS/eip-7708

Open questions:

Missing definitions

1. Magic was not defined in EIP, I have set a placeholder for Magic as the hash of 0000...000000000 as proposed here
2. Address is also not defined in EIP, I have set placeholder 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE as proposed here
3. Why do we not create LOGs when CREATE is called?

"Stuff" I'm unsure about

From EIP:

The LOG of a value-transferring transaction should be placed before any logs created by EVM execution. The other two LOGs are placed when the value transfer executes.

Q1
"value-transferring transaction" - is this just EOA to EOA transfer? (eg. Bob directly transferred 1 ETH to Alice)

Q2
This one is about adding logs in the proper place.
I think I placed SELF_DESTRUCT appropriately. But I'm unsure about handling CALL and "value-transferring tx"

This is my understanding of transaction execution flow (is this OK?):

My understanding is that we potentially have 3 options for placing logs:

1. In TransitionDb: Not OK, because we cannot handle SELF_DESTRUCT here (since we don't know contract balance) and doesn't satisfy EIP requirement "...The other two LOGs are placed when the value transfer executes."
2. In Transfer (core/evm.go): Not ok because SELF_DESTRUCT doesn't call this function - but I'm unsure why. Can we refactor both opSelfdestruct and opSelfdestruct6780, especially since opSelfdestruct6780 does the same steps as Transfer and have logs created in Transfer?
3. The placement I chose, as far as I can tell, satisfies both EIP requirements (even though this seems a bit odd, since unlike EIP specification logs are created at the same place for CALL and "value-transferring tx" at the same place, and SELF_DESTRUCT is handled specially)

Q3
EIP activation - how to choose when EIP will be activated, especially given this is code aimed at rollups.

Q4
What are the usual test practices? I found no log-specific tests (apart from marshaling/unmarshalling). Is mocking StateDB and the op-codes the best way to go?