Refactor and add importer to Installer module #443 (#444)

* Refactor and add importer to Installer module #443

* Refactor for finances to use in import

* Import groups into roles

* Formatting

* Formatting

* Add interface in installer for import

* Notes about importing

* Check for installer folder

* Formatting

* Fix pirep->user mapping

* Unused import

* Formatting

modules/Installer/Exceptions/ImporterNextRecordSet.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Modules\Installer\Exceptions;
+
+/**
+ * Go to the next page of the importer
+ */
+class ImporterNextRecordSet extends \Exception
+{
+    public $nextOffset;
+
+    /**
+     * ImporterNextRecordSet constructor.
+     *
+     * @param int $nextOffset Where to start the next set of reads from
+     */
+    public function __construct($nextOffset)
+    {
+        parent::__construct('', 0, null);
+        $this->nextOffset = $nextOffset;
+    }
+}