Add config and basic architecture for QUIC

substrate/src/main.rs

@@ -1,3 +1,17 @@
+mod transport;
+mod config;
+
+use std::sync::Arc;
+use bevy::prelude::*;
+use crate::config::AppConfig;
+
 fn main() {
-    println!("Hello, world!");
-}
+    let config = AppConfig::load("config.toml").expect("Failed to load config");
+    println!("{:?}", config);
+
+    App::new()
+        .insert_resource(config)
+        .add_plugins(MinimalPlugins)
+        .add_plugins(transport::ecs::EcsQuicTransportPlugin{})
+        .run();
+}