Use interfaces for `SignedBeaconBlock` and `BeaconState`, this allows the application to determine the correct forked struct.
In the test we also use a switch condition to properly serve the correct mimics.
* Checkpoint before the weekend
* Update location for SetupPostgresDB
* Include first functioning tests for processing head
* Fix gitignore
* Test CaptureHead | Add Metrics | Handle Test Race Conditions
This Commit allows us to:
* Test the `CaptureHead` function.
* Test parsing a single Head message.
* Test a Reorg condition.
* Add Metrics. This is primarily used for testing but can have future use cases.
* Rearrange the test due to race conditions introduced by reusing a variable. `BeforeEach` can't be used to update `BC`.
* Update and finalize testing at this stage
* Update code and CI/CD
* Fix lint errors
* Update CICD and fail when file not found.
* Update test to have failed as expected.
