Support Ability To Extend Props From Other Props

## Feature Request

It'd be helpful to have the ability to extend from another component's props:

```rust
#[derive(Props, Clone, PartialEq)]
pub struct Comp1Props {
abc: bool,
disabled: bool,
}

// .. fn Comp1()

#[derive(Props, Clone, PartialEq)]
pub struct Comp2Props {
// extend prop attributes by specifying component fn or prop struct
#[props(extends = Comp1)]
attributes: Vec,
}

#[component]
pub fn Comp2(props: Comp2Props) -> Element {
rsx! {
Comp1 {
disabled: false, // add your own props as desired
..props.attributes, // spread any generic prop through components
}
}
}
```