Add a way for JobExecution storage to be setup before used (#107)

* Add a way for JobExecution storage to be setup before used

* Fixed code style

* Test DoctrineDBALJobExecutionStorage::createSchema deprecated method

* Fixed wrong usage of magic constants

* Removed deprecation test

* Proper test without deprecation

src/Storage/SetupableJobExecutionStorageInterface.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yokai\Batch\Storage;
+
+/**
+ * A job execution having this interface tells the developers it should be setuped before being used.
+ */
+interface SetupableJobExecutionStorageInterface
+{
+    /**
+     * Setup the storage.
+     */
+    public function setup(): void;
+}