Add debug endpoint to eth-rpc for capturing a block or a single
transaction traces

See:
-  PR #7166

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Co-authored-by: Alexander Theißen <alex.theissen@me.com>
Co-authored-by: command-bot <>
Co-authored-by: Yuri Volkov <0@mcornholio.ru>
Co-authored-by: Maksym H <1177472+mordamax@users.noreply.github.com>
Co-authored-by: Santi Balaguer <santiago.balaguer@gmail.com>
Co-authored-by: Dónal Murray <donal.murray@parity.io>
Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: xermicus <cyrill@parity.io>