start with init command

src/commands/init.rs

@@ -0,0 +1,9 @@
+use std::fs::DirBuilder;
+
+pub fn init() {
+    let builder = DirBuilder::new();
+    match builder.create("./test/dir") {
+        Ok(()) => println!("Directory successfuly created"),
+        Err(_) => println!("Error: cannot create directory"),
+    }
+}