Node.js v4 programming model - feature request - tags

Can the api config object support an optional `tag`, similar to [OpenApi tags](https://swagger.io/docs/specification/grouping-operations-with-tags/), to organize the APIs?

```
app.deleteRequest('deleteBlogPost', {
tags: ["Blog"],
route: "blogpost/{id}",
authLevel: 'anonymous',
handler: deleteBlogPost
});
```

Start by locating the Node.js v4 programming model's API configuration handling and review the linked OpenAPI tags guidance. Done means the API config accepts an optional tag or tags value and uses it to organize APIs as shown in the example.

Written by the indexing model from the issue text.