add `getMatchedRoute(event)`

[patogordo]

Describe the feature

This feature works similar to getRequestPath(event) but for the defined route path

Example

When the route /api/route/:id is requested, the getRequestPath returns it requested path, like: '/api/route/123'. The getRoutePath will return the route path to it self /api/route/:id .

Why this feature?

Middleware's that verifies the requested route can't access the defined route, just the requested path

Additional information

• [ ] Would you be willing to help implement this feature?