Support for ValueObject cast.

[Legion112]

Is your feature request related to a problem? Please describe.
Laravel 9 supports AttributeCasting for ValueObject for example class money
I wanna this library to support ValueObject casting.

Describe the solution you'd like
We probably should add a way to allow to return of multiple value for setAttribute via hashmap or via some custom DTO object SetAttributes

    public function setAttribute($value)
    {
        return ucwords($value);
    }

We should return
Describe alternatives you've considered

Additional context

[vkovic]

@Legion112 Interesting point.

I'll look into this in next couple of days.

If you have some idea on concrete implementation, you can share it meanwhile.