cmd/evm: add tests for evm t8n (#23507)

cmd/evm/README.md

cmd/evm/internal/t8ntool/transition.go

cmd/evm/main.go

cmd/evm/t8n_test.go

cmd/evm/testdata/1/exp.json

cmd/evm/testdata/13/exp.json

cmd/evm/testdata/13/exp2.json

cmd/evm/testdata/13/signed_txs.rlp

cmd/evm/testdata/14/env.json

cmd/evm/testdata/14/env.uncles.json

cmd/evm/testdata/14/exp.json

cmd/evm/testdata/14/exp2.json

cmd/evm/testdata/14/readme.md

cmd/evm/testdata/15/signed_txs.rlp.json

cmd/evm/testdata/3/exp.json

cmd/evm/testdata/5/exp.json

internal/cmdtest/test_cmd.go