got binary tree insert working need to isolate traversal and setup delete

src/queue.rs

@@ -0,0 +1,24 @@
+pub struct Queue<T> {
+    queue: Vec<T>,
+}
+
+impl<T> Queue<T> {
+    pub fn new() -> Self {
+        Queue { queue: Vec::new() }
+    }
+    pub fn length(&self) -> usize {
+        self.queue.len()
+    }
+    pub fn enqueue(&mut self, item: T) {
+        self.queue.push(item)
+    }
+    pub fn dequeue(&mut self) -> T {
+        self.queue.remove(0)
+    }
+    pub fn is_empty(&self) -> bool {
+        self.queue.is_empty()
+    }
+    pub fn peek(&self) -> Option<&T> {
+        self.queue.first()
+    }
+}