mvc: default value on @QueryParam/@CookieParam/@HeaderParam annotation

```java
public String query(@QueryParam("25") int max) {
   // max will be 25 by default
}
```


From lambda/script routes will be:

```
  var max = ctx.query().getOrDefault("max", "25");
```

It differs from `value(default value)` bc the `string` can be converted to `value` node and any of the value supported by Value API.