* Initial commit for state tracking
* basic state transition logic and tests
* constructor. test and interface fixup
* use new sig for sch.definitionRoutine()
* test fixup
* make the linter happy
* more minor linting cleanup
* Alerting: Send alerts from state tracker to notifier
* Add evaluation time and test
Add evaluation time and test
* Add cleanup routine and logging
* Pull in compact.go and reconcile differences
* Save alert transitions and save all state on shutdown
* pr feedback
* WIP
* WIP
* Persist alerts on evaluation and shutdown. Warm cache on startup
* Filter non-firing alerts before sending to notifier
Co-authored-by: Josue Abreu <josue@grafana.com>