Make it possible to use objects as a values for binary search tree nodes.

src/data-structures/tree/binary-search-tree/BinarySearchTree.js

@@ -5,18 +5,31 @@ export default class BinarySearchTree {
     this.root = new BinarySearchTreeNode();
   }
 
+  /**
+   * @param {*} value
+   */
   insert(value) {
     this.root.insert(value);
   }
 
+  /**
+   * @param {*} value
+   * @return {boolean}
+   */
   contains(value) {
     return this.root.contains(value);
   }
 
+  /**
+   * @param {*} value
+   */
   remove(value) {
     return this.root.remove(value);
   }
 
+  /**
+   * @return {string}
+   */
   toString() {
     return this.root.toString();
   }