* Migrate restore_state helper to use registry loading pattern
As more entities have started using restore_state over time, it
has become a startup bottleneck as each entity being added is
creating a task to load restore state data that is already loaded
since it is a singleton
We now use the same pattern as the registry helpers
* fix refactoring error -- guess I am tired
* fixes
* fix tests
* fix more
* fix more
* fix zha tests
* fix zha tests
* comments
* fix error
* add missing coverage
* s/DATA_RESTORE_STATE_TASK/DATA_RESTORE_STATE/g
J. Nick Koston
epenet
Franck Nijhof
Raman Gupta