Restore_state helper to restore entity states from the DB on startup (#4614)

* Restore states

* feedback

* Remove component move into recorder

* space

* helper

* Address my own comments

* Improve test coverage

* Add test for light restore state

homeassistant/loader.py

@@ -197,8 +197,8 @@ def load_order_components(components: Sequence[str]) -> OrderedSet:
         load_order.update(comp_load_order)
 
     # Push some to first place in load order
-    for comp in ('mqtt_eventstream', 'mqtt', 'logger',
-                 'recorder', 'introduction'):
+    for comp in ('mqtt_eventstream', 'mqtt', 'recorder',
+                 'introduction', 'logger'):
         if comp in load_order:
             load_order.promote(comp)