Initialize Rust and VS Code.

src/main.rs

@@ -0,0 +1,8 @@
+mod set1;
+
+use crate::set1::convert_hex_to_base64;
+
+fn main() {
+    println!("Hello, world! Does it work?");
+    convert_hex_to_base64();
+}

src/set1.rs

@@ -0,0 +1,3 @@
+pub fn convert_hex_to_base64() {
+    println!("We are here too.");
+}