Add ExchangeSort (#5029)

* added ExchangeSort and its testcases

---------

Co-authored-by: Piotr Idzik <65706193+vil02@users.noreply.github.com>

src/test/java/com/thealgorithms/sorts/ExchangeSortTest.java

@@ -0,0 +1,8 @@
+package com.thealgorithms.sorts;
+
+public class ExchangeSortTest extends SortingAlgorithmTest {
+    @Override
+    SortAlgorithm getSortAlgorithm() {
+        return new ExchangeSort();
+    }
+}