Add php unit configuration file to git

.gitignore

@@ -7,3 +7,4 @@
 !/etc/build/.gitignore
 
 /behat.yml
+/phpunit.xml

phpunit.xml.dist

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="tests/Application/config/bootstrap.php"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+
+        <env name="APP_SECRET" value="''" />
+        <env name="APP_ENV" value="test"/>
+        <env name="APP_DEBUG" value="0"/>
+        <env name="SHELL_VERBOSITY" value="-1" />
+
+        <server name="KERNEL_CLASS" value="Tests\BitBag\SyliusWishlistPlugin\Application\Kernel" />
+        <server name="KERNEL_CLASS_PATH" value="/tests/Application/Kernel.php" />
+        <server name="IS_DOCTRINE_ORM_SUPPORTED" value="true"/>
+        <server name="SHELL_VERBOSITY" value="-1" />
+        <server name="ESCAPE_JSON" value="true" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Project Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>