Update project structure

Source/Main.rs

@@ -0,0 +1,12 @@
+#![no_std]
+#![no_main]
+#![allow(non_snake_case)]
+#![allow(unused_imports)]
+
+use panic_halt;
+use prussia_rt;
+
+#[no_mangle]
+fn main() -> ! {
+    loop {}
+}