[Hacker Rank] New common lib to build Binary Trees

Author: Gonzalo Diaz

src/hackerrank/lib/Node.js

@@ -0,0 +1,17 @@
+/* istanbul ignore file */
+
+export class Node {
+  left;
+
+  right;
+
+  data;
+
+  constructor(data) {
+    this.left = null;
+    this.right = null;
+    this.data = data;
+  }
+}
+
+export default { Node };