Refactor: standardize epoch settings naming

[dlachaume]

Content

This PR includes refactoring of epoch settings:

• Moved EpochSettings from common to SignerEpochSettings in the signer
• Standardized occurrences of EpochSetting to EpochSettings
• Renamed the ProtocolParametersStorer trait to EpochSettingsStorer

Pre-submit checklist

• Branch
  • Tests are provided (if possible)
  • Crates versions are updated (if relevant)
  • CHANGELOG file is updated (if relevant)
  • Commit sequence broadly makes sense
  • Key commits have useful messages
• PR
  • No clippy warnings in the CI
  • Self-reviewed the diff
  • Useful pull request description
  • Reviewer requested
• Documentation
  • Update README file (if relevant)
  • Update documentation website (if relevant)
  • Add dev blog post (if relevant)

[github-actions]

Test Results

    4 files  ±0     54 suites  ±0   9m 48s ⏱️ +9s
1 295 tests ±0  1 295 ✅ ±0  0 💤 ±0  0 ❌ ±0 
1 506 runs  ±0  1 506 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit d8880b4. ± Comparison against base commit a0d6680.

This pull request removes 10 and adds 10 tests. Note that renamed tests count towards both.

mithril-aggregator ‑ database::query::epoch_setting::delete_epoch_setting::tests::test_delete_below_threshold
mithril-aggregator ‑ database::query::epoch_setting::delete_epoch_setting::tests::test_delete_by_epoch
mithril-aggregator ‑ database::query::epoch_setting::get_epoch_setting::tests::test_get_epoch_settings
mithril-aggregator ‑ database::query::epoch_setting::update_epoch_setting::tests::test_update_epoch_setting
mithril-aggregator ‑ database::repository::epoch_setting_store::tests::save_protocol_parameters_prune_older_epoch_settings
mithril-aggregator ‑ store::protocol_parameters_store::tests::test_get_protocol_parameters_do_not_exist
mithril-aggregator ‑ store::protocol_parameters_store::tests::test_get_protocol_parameters_exist
mithril-aggregator ‑ store::protocol_parameters_store::tests::test_handle_discrepancies_at_startup_should_complete_at_least_two_epochs
mithril-aggregator ‑ store::protocol_parameters_store::tests::test_save_protocol_parameters_already_exist
mithril-aggregator ‑ store::protocol_parameters_store::tests::test_save_protocol_parameters_do_not_exist_yet

mithril-aggregator ‑ database::query::epoch_settings::delete_epoch_settings::tests::test_delete_below_threshold
mithril-aggregator ‑ database::query::epoch_settings::delete_epoch_settings::tests::test_delete_by_epoch
mithril-aggregator ‑ database::query::epoch_settings::get_epoch_settings::tests::test_get_epoch_settings
mithril-aggregator ‑ database::query::epoch_settings::update_epoch_settings::tests::test_update_epoch_settings
mithril-aggregator ‑ database::repository::epoch_settings_store::tests::save_protocol_parameters_prune_older_epoch_settings
mithril-aggregator ‑ store::epoch_settings_storer::tests::test_get_protocol_parameters_do_not_exist
mithril-aggregator ‑ store::epoch_settings_storer::tests::test_get_protocol_parameters_exist
mithril-aggregator ‑ store::epoch_settings_storer::tests::test_handle_discrepancies_at_startup_should_complete_at_least_two_epochs
mithril-aggregator ‑ store::epoch_settings_storer::tests::test_save_protocol_parameters_already_exist
mithril-aggregator ‑ store::epoch_settings_storer::tests::test_save_protocol_parameters_do_not_exist_yet

♻️ This comment has been updated with latest results.

[Alenar]

LGTM

[jpraynaud]

LGTM 👍