Added empty regsitration controller

When using the default Laravel auth routes, it expects a registration controller, even though we don’t have a concept of registration. This blank controller just prevents route caching from throwing errors.

app/Http/Controllers/Auth/RegisterController.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Http\Controllers\Auth;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Foundation\Auth\ResetsPasswords;
+
+class RegisterController extends Controller
+{
+
+    public function __construct()
+    {
+        $this->middleware('guest');
+    }
+}