add atoum bootstrap file

Author: Sebastien Malot

.atoum.php

@@ -0,0 +1,9 @@
+<?php
+
+use \mageekguy\atoum;
+
+$report = $script->addDefaultReport();
+
+$coverageField = new atoum\report\fields\runner\coverage\html('Kong', 'coverage');
+$coverageField->setRootUrl('http://test.local');
+$report->addField($coverageField);