moved files to standard rust file/folder structure

src/main.rs

@@ -0,0 +1,9 @@
+/*--------------------------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
+ *-------------------------------------------------------------------------------------------------------------*/
+
+fn main() {
+    let name = "VS Code Remote - Containers";
+    println!("Hello, {}!", name);
+}