Method change

src/checkbox.rs:61–68

(&mut self, props: Self::Properties)

    }

    fn change(&mut self, props: Self::Properties) -> ShouldRender {
        if self.props != props {
            self.props = props;
            true
        } else {
            false
        }
    }

    //           indeterminate?=to_option(self.props.indeterminate)
    //           disabled=self.props.disabled