Add phpUnit testing and update test file.

Test file does not run any tests automatically but they need to be
triggered with the _GET parameters.

A full phpunit test has been added for the full functionality

phpunit.xml

@@ -2,4 +2,8 @@
     colors="true"
     verbose="true"
 >
+    <!-- Below removes final from classes for mock tests -->
+    <extensions>
+        <extension class="test\phpUnit\Hook\BypassFinalHook" file="test/phpUnit/Hook/BypassFinalHook.php" />
+    </extensions>
 </phpunit>