feat: add rust codes for linked_list and my_list (#408)

* feat: add rust codes for linked_list

* feat: add rust codes for my_list

* Update linked_list.rs

* Update print_util.rs

---------

Co-authored-by: Yudong Jin <krahets@163.com>

codes/rust/include/list_node.rs

@@ -0,0 +1,22 @@
+/*
+ * File: list_node.rs
+ * Created Time: 2023-03-05
+ * Author: sjinzh (sjinzh@gmail.com)
+ */
+
+use std::rc::Rc;
+use std::cell::RefCell;
+
+pub struct ListNode<T> {
+    pub val: T,
+    pub next: Option<Rc<RefCell<ListNode<T>>>>,
+}
+
+impl<T> ListNode<T> {
+    pub fn new(val: T) -> Rc<RefCell<ListNode<T>>> {
+        Rc::new(RefCell::new(ListNode {
+            val,
+            next: None,
+        }))
+    }
+}