Add integration with nuxt asyncData/fetch

Mb for nuxt asyncData api, because `waitFor` not working for this
Something like this
```js
export default function (waiter, func) {
return async (...args) => {
const { app } = args[0];

try {
app.wait.start(waiter);
return await func.apply(this, args);
} finally {
app.wait.end(waiter);
}
};
};

```
Or if `vue-wait` have this function, sorry and help pls)