* add evm options to evmtool too
* Statically initiatise SignatureAlgorithm default instance for reference tests

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Signed-off-by: Luis Pinto <luis.pinto@consensys.net>
Signed-off-by: Simon Dudley <simon.dudley@consensys.net>
Co-authored-by: Simon Dudley <simon.dudley@consensys.net>