Added countdown actions

module/data/action/countdownAction.mjs

@@ -0,0 +1,15 @@
+import DHBaseAction from './baseAction.mjs';
+
+export default class DhCountdownAction extends DHBaseAction {
+    static extraSchemas = [...super.extraSchemas, 'countdown'];
+
+    get defaultValues() {
+        return {
+            ...super.defaultValues,
+            countdown: {
+                name: this.parent.parent.name,
+                img: this.img
+            }
+        };
+    }
+}