Cancun

Documentation for tests/cancun@7b8124a7.

Generate fixtures for these test cases for Bpo2 with:

fill -v tests/cancun --fork Bpo2

Test cases for EVM functionality introduced in Cancun.

See EIP-7659: Hardfork Meta - Dencun for a list of EIPS included in Dencun (Deneb/Cancun).