moved heap-sort to algorithms/sorting

Author: loiane

Diff for: src/js/algorithms/sorting/heap-sort.js

@@ -1,4 +1,4 @@
-import { defaultCompare, swap } from '../util';
+import { defaultCompare, swap } from '../../util';
 
 function heapify(array, index, heapSize, compareFn) {
   let largest = index;

Diff for: src/ts/algorithms/sorting/heap-sort.ts

@@ -1,4 +1,4 @@
-import { defaultCompare, ICompareFunction, swap } from '../util';
+import { defaultCompare, ICompareFunction, swap } from '../../util';
 
 function heapify(array: any[], index: number, heapSize: number, compareFn: ICompareFunction<any>) {
   let largest = index;

Diff for: test/ts/data-structures/heap.spec.ts

@@ -2,7 +2,7 @@ import 'mocha';
 // import { expect } from 'chai';
 import { MinHeap } from '../../../src/ts/index';
 import { MaxHeap } from '../../../src/ts/data-structures/heap';
-import heapSort from '../../../src/ts/sorting/heap-sort';
+import heapSort from '../../../src/ts/algorithms/sorting/heap-sort';
 
 describe('Heap', () => {
   let heap: MinHeap<number>;