refactor: remove bls keys from snapshot import

[oXtxNt9U]

Summary

• imported validators from a snapshot are now inactive
• genesis block always registers genesis validators (even with a snapshot), so fresh genesis validators are the sole active set
• genesis validators register with a 0 fee, on first round change the validator fee is updated to milestone value (otherwise it would mess with the supply when importing a snapshot)

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

❌ Patch coverage is 41.86047% with 100 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.28%. Comparing base (fab9ba3) to head (cc0c840).
⚠️ Report is 25 commits behind head on fix/evm/consenus-contract.

Files with missing lines	Patch %	Lines
packages/evm/bindings/src/lib.rs	0.00%	58 Missing ⚠️
...ation-generator/source/generators/genesis-block.ts	82.89%	13 Missing ⚠️
...ckages/snapshot-legacy-importer/source/importer.ts	0.00%	9 Missing ⚠️
packages/evm/bindings/src/ctx.rs	0.00%	7 Missing ⚠️
...ration-generator/source/configuration-generator.ts	0.00%	6 Missing ⚠️
packages/evm-service/source/instances/evm.ts	33.33%	4 Missing ⚠️
packages/evm-consensus/source/deployer.ts	0.00%	2 Missing ⚠️
...ckages/snapshot-legacy-importer/source/defaults.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##           fix/evm/consenus-contract    #1379   +/-   ##
==========================================================
  Coverage                      59.27%   59.28%           
==========================================================
  Files                            968      968           
  Lines                          65954    65938   -16     
  Branches                        1911     1911           
==========================================================
- Hits                           39097    39094    -3     
+ Misses                         26616    26603   -13     
  Partials                         241      241           

Flag	Coverage Δ
contracts	92.47% <100.00%> (-0.54%)	⬇️
packages	59.07% <40.47%> (+0.01%)	⬆️

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