Asset bundling

Asset bundling not yet implemented, but local asset usage works already.

Local Assets

It is possible to use local assets from assets/webview/... folder. These assets can be referenced by webview:// protocol, e.g. assets/webview/react_app/index.html will be resolvable through webview://react_app/index.html.

extern crate bevy;
extern crate bevy_webview;
use bevy::prelude::*;
use bevy_webview::prelude::*;
fn setup(mut commands: Commands) {
    commands.spawn_bundle(WebviewUIBundle {
        webview: Webview {
            uri: Some(String::from("webview://react_app/index.html")),
            ..Default::default()
        }
    });
}