Much renaming and refreshing of RBE

rustbyexample/hello.d/print.d/print_debug.rs

@@ -0,0 +1,18 @@
+#[derive(Debug)]
+struct Structure(i32);
+
+#[derive(Debug)]
+struct Deep(Structure);
+
+fn main() {
+    println!("{:?} months in a year.", 12);
+    println!(
+        "{1:?} {0:?} is the {actor:?} name.",
+        "Slater",
+        "Christian",
+        actor = "actor's"
+    );
+
+    println!("Now {:?} will print!", Structure(3));
+    println!("Now {:?} will print!", Deep(Structure(7)));
+}