add argh

src/main.rs

@@ -1,3 +1,12 @@
+use argh::FromArgs;
+
+#[derive(FromArgs, Debug)]
+/// A 3D exploration game using real world imagery.
+struct Args {
+}
+
 fn main() {
-	println!("Hello, world!");
+	let _args: Args = argh::from_env();
+
+	println!("Vibescape");
 }