Verkle Planning

[fjl]

• transition implementation PR

• finalizing implementation of verkle-gen-7-testnet

  • core/state, core/vm: update stateless gas costs to follow the verkle-gen-7 testnet #31014
  • core/vm: fix system call detection in extcodecopy #31114

• verkle-gen-8-testnet

  • rebase of verkle code on top of cancun/prague changes
  • [wip] implement FILL_COST #30201

• contract code update in verkle

  • Contract code reset in verkle tree #31559

• base state root tracking

  • State identifying during verkle transition #31583