Add homeassistant sensor_action

lib/homeassistant.js

@@ -95,6 +95,15 @@ const configurations = {
             value_template: '{{ value_json.power }}',
         }
     },
+    'sensor_action': {
+        type: 'sensor',
+        object_id: 'action',
+        discovery_payload: {
+            icon: 'mdi:cube',
+            value_template: '{{ value_json.action }}',
+            json_attributes: ['battery'],
+        }
+    },
 
     // Light
     'light_brightness_colortemp_xy': {