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/Http/Routes/importer.php

@@ -0,0 +1,9 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+
+Route::get('/', 'ImporterController@index')->name('index');
+Route::post('/config', 'ImporterController@config')->name('config');
+Route::get('/run', 'ImporterController@run')->name('run');
+
+Route::get('/complete', 'ImporterController@complete')->name('complete');