Archive event logs per epoch

[qubicmio]

What, why, who

As operator I would like to have the possibility to restore the archive with archived event log data in case of data loss to be able to provide the historical event logs again.

Acceptance criteria

• Move event logs per epoch to long term storage (e.g. script similar to tick archive).
• Make sure the bridge can start and serve archived event log data (single logs via API).
• Make sure the bridge can start with archived event log data without connecting to bob.
• Make sure the bridge can publish archived event log data (publish whole epoch or log range).
• Make sure the bridge releases old databases (configurable flag 'keep x epochs').

Scope

• Archive data.
• Access archived data.
• Restore from archived data.