* -- Intermediary Commit --
Just want to commit my code over the weekend, in case I spill coffee on my workstation.
* Create DB models ready for write.
* Handle SSE events
* Update ref for stack-orchestrator
* Use env in one place only.
* Boot Application on PR
* Update syntax
* Update syntax
* Correct command
* Use bash instead of sh
* Use until instead of while
* Make linter happy and check sse subscription err
* Handle Reorgs - Untested
This Commit contains the following:
* Graceful shutdowns.
* Handling all incoming SSE events for reorgs, finalizations, and head.
The structure of the `BeaconClient` has drastically changed and generics are used.
