Refactoring of the `evm` command moved where some commands were valid.
One command, `--bench`, used to work in `evm statetest`. The pluming is
still in place. This PR puts the `--bench` flag in the place the trace
flags were moved, and adds tests to validate the bench flag operates in
`run` and `statetest`
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Co-authored-by: Felix Lange <fjl@twurst.com>
Danno Ferrin