refactor(node): remove test code from production code

[matan-starkware]

Remove the test config from ConsensusConfig, this is now just part of the test binary.
Consensus simulations now call to the run_consensus binary.

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This change is 

[matan-starkware]

• refactor(node): remove test code from production code #877 👈
• refactor(node): remove test code from production code #876 : 1 other dependent PR (#880 )
• refactor(node): move main to its own file and keep run infrastructure reusable #874
• refactor(node): split run from main, as it will be used by many binaries #873
• refactor(node): introduce PapyrusTaskHandles to hold task overrides #885
• main

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