Add automations and scripts to group.all_automations and group.all_scripts (#3664)

* Add automations to group.all_automations

* Add scripts to group.all_scripts

tests/components/test_script.py

@@ -82,6 +82,10 @@ class TestScriptComponent(unittest.TestCase):
         self.hass.block_till_done()
         self.assertEqual(0, len(events))
 
+        state = self.hass.states.get('group.all_scripts')
+        assert state is not None
+        assert state.attributes.get('entity_id') == (ENTITY_ID,)
+
     def test_toggle_service(self):
         """Test the toggling of a service."""
         event = 'test_event'