feat(fortuna): Use v2 events, add new fields to History API for Explorer

[tejasbadadare]

Summary

• Use the RequestedV2 event instead of RequestedWithCallback (v1) when processing new requests. This lets us store the user provided gas_limit param so we can display it in the Explorer.
• Capture the Revealed event when a reveal tx succeeds. This lets us store information around user callback status.
• Add the following fields to the History API schema (sourced from the aforementioned events):
  • callback_failed - True when the user callback fails. The status will still be success. This lets us display the state in Explorer where the reveal succeeded, but the user callback failed.
  • callback_return_value - Contains the revert bytes returned by the user callback
  • callback_gas_used
  • gas_limit - User provided, defaults to provider default if not customized by user.
• Bump version to 9.0.0 since this is backwards incompatible with Entropy v1

Rationale

• With Entropy v2, all reveals are now considered successful even if the user callback reverts. We want to show user callback failure details in the Explorer, which requires capturing and storing additional information from the v2 events.

How has this been tested?

• Current tests cover my changes
  • Updated unit tests to validate new schema
• Added new tests
• Manually tested the code

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