added short invoice calculator and timesheet invoice template #104 (#105)

src/Controller/InvoiceController.php

@@ -231,6 +231,17 @@ class InvoiceController extends AbstractController
         ]);
     }
 
+    /**
+     * @param InvoiceModel $model
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function timesheetAction(InvoiceModel $model)
+    {
+        return $this->render('invoice/timesheet.html.twig', [
+            'model' => $model,
+        ]);
+    }
+
     /**
      * @param InvoiceQuery $query
      * @return \Symfony\Component\Form\FormInterface