Lots of new code for new importer routine.

app/Import/Configurator/ConfiguratorInterface.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * ConfiguratorInterface.php
+ * Copyright (c) 2017 thegrumpydictator@gmail.com
+ * This software may be modified and distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License.
+ *
+ * See the LICENSE file for details.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Import\Configurator;
+
+use FireflyIII\Models\ImportJob;
+
+/**
+ * Interface ConfiguratorInterface
+ *
+ * @package FireflyIII\Import\Configurator
+ */
+interface ConfiguratorInterface
+{
+    /**
+     * ConfiguratorInterface constructor.
+     *
+     * @param ImportJob $job
+     */
+    public function __construct(ImportJob $job);
+
+    /**
+     * Store any data from the $data array into the job.
+     *
+     * @param array $data
+     *
+     * @return bool
+     */
+    public function configureJob(array $data): bool;
+
+    /**
+     * Return the data required for the next step in the job configuration.
+     *
+     * @return array
+     */
+    public function getNextData(): array;
+
+    /**
+     * Returns the view of the next step in the job configuration.
+     *
+     * @return string
+     */
+    public function getNextView(): string;
+
+    /**
+     * Returns true when the initial configuration for this job is complete.
+     *
+     * @return bool
+     */
+    public function isJobConfigured(): bool;
+
+}