coordinator: adds config v2 sample

[fluentcrafter]

This PR implements issue(s) #922

Checklist

• [ ] I wrote new tests for my new core changes.
• [ ] I have successfully ran tests, style checker and build against my new changes locally.
• [ ] I have informed the team of any breaking changes if there are any.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 58.18936% with 605 lines in your changes missing coverage. Please review.

Project coverage is 65.92%. Comparing base (62b422b) to head (62c8b30). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
.../consensys/zkevm/coordinator/app/L1DependentApp.kt	0.00%	283 Missing :warning:
...a/coordinator/config/v2/toml/ConfigLoaderHelper.kt	50.64%	34 Missing and 4 partials :warning:
...nea/coordinator/config/v2/toml/SignerConfigToml.kt	54.68%	11 Missing and 18 partials :warning:
...kotlin/linea/coordinator/config/v2/SignerConfig.kt	40.00%	22 Missing and 2 partials :warning:
...lin/linea/coordinator/config/v2/toml/ProverToml.kt	61.29%	22 Missing and 2 partials :warning:
...ea/coordinator/config/v2/MessageAnchoringConfig.kt	57.14%	14 Missing and 7 partials :warning:
...nator/config/v2/toml/MessageAnchoringConfigToml.kt	78.08%	7 Missing and 9 partials :warning:
...kotlin/linea/coordinator/config/v2/ProverConfig.kt	0.00%	14 Missing :warning:
...act/l2/Web3JL2MessageServiceSmartContractClient.kt	0.00%	14 Missing :warning:
...ea/coordinator/config/v2/toml/decoders/Decoders.kt	55.55%	6 Missing and 6 partials :warning:
... and 31 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #853      +/-   ##
============================================
- Coverage     66.59%   65.92%   -0.67%     
- Complexity     1135     1172      +37     
============================================
  Files           324      354      +30     
  Lines         12994    13494     +500     
  Branches       1356     1361       +5     
============================================
+ Hits           8653     8896     +243     
- Misses         3780     4033     +253     
- Partials        561      565       +4     

Flag	Coverage Δ
hardhat	98.51% <ø> (ø)
kotlin	63.47% <58.18%> (-0.62%)	:arrow_down:

Files with missing lines	Coverage Δ
...in/kotlin/linea/coordinator/config/v2/ApiConfig.kt	100.00% <100.00%> (ø)
.../linea/coordinator/config/v2/toml/ApiConfigToml.kt	100.00% <100.00%> (ø)
...n/linea/coordinator/config/v2/toml/DatabaseToml.kt	100.00% <100.00%> (ø)
...n/linea/coordinator/config/v2/toml/DefaultsToml.kt	100.00% <100.00%> (ø)
...nea/coordinator/config/v2/toml/StateManagerToml.kt	100.00% <100.00%> (ø)
...nator/config/v2/toml/Type2StateProofManagerToml.kt	100.00% <100.00%> (ø)
...sensys/zkevm/coordinator/app/CoordinatorAppMain.kt	0.00% <ø> (ø)
...n/net/consensys/zkevm/ethereum/ContractsManager.kt	61.53% <100.00%> (+0.75%)	:arrow_up:
...n/src/main/kotlin/linea/kotlin/StringExtensions.kt	100.00% <100.00%> (ø)
...faces/src/main/kotlin/linea/ethapi/EthApiClient.kt	50.00% <ø> (ø)
... and 41 more

... and 5 files with indirect coverage changes

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