Refactor Tests namespace

Author: tlmcclatchey

composer.json

@@ -16,7 +16,7 @@
   },
   "autoload-dev": {
     "psr-4": {
-      "CommonPHP\\Tests\\": "tests/"
+      "CommonPHP\\Tests\\DatabaseEngine\\": "tests/"
     }
   },
   "require": {

tests/ResultTest.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace CommonPHP\Tests;
+namespace CommonPHP\Tests\DatabaseEngine;
 
 use ArrayIterator;
 use CommonPHP\DatabaseEngine\Result;