[proposal] react liked code organizing style 7 months ago

From Wenhua Shi to ~eliasnaur/gio

Hello everyone,

Gio is awesome. I've been developing tools based on gio. However I
found that the way I organize codes with gio is somehow exhausting
compared to modern web development routine.

Is there any possibilty that gio codes could be organized in the
following react-liked way?

```
func main() {
    win := Component(func(props struct{}, children ...func() Node) Node {
        counter, setCounter := UseState(0)
        doubled, setDoubled := UseState(0)