Add Nested `.permit(users: [])` to Permit all parameters

There is no way to permit all nested params. It could be great to make it possible to pass `[]` for permitting all nested params
```ruby
class AppFunction < ActiveFunction::Base
   def index
      params.permit(data: []).to_h # =>  { data: { id: 1, text: "foobar" } }
   end
end

AppFunction.process(:index, { data: { id: 1, text: "foobar" } })

```