Add buildnr to debug form.

app/Http/Controllers/DebugController.php

@@ -144,6 +144,15 @@ class DebugController extends Controller
         $bcscale              = bcscale();
         $layout               = env('FIREFLY_III_LAYOUT');
         $tz                   = env('TZ');
+        $buildNr              = '(unknown)';
+        $buildDate            = '(unknown)';
+
+        if (file_exists('/var/www/counter-main.txt')) {
+            $buildNr = file_get_contents('/var/www/counter-main.txt');
+        }
+        if (file_exists('/var/www/build-date-main.txt')) {
+            $buildDate = file_get_contents('/var/www/build-date-main.txt');
+        }
 
         // expected + found DB version:
         $expectedDBversion = config('firefly.db_version');
@@ -206,6 +215,8 @@ class DebugController extends Controller
                 'drivers',
                 'currentDriver',
                 'loginProvider',
+                'buildNr',
+                'buildDate',
                 'bcscale',
                 'layout',
                 'userAgent',

resources/views/debug.twig

@@ -17,6 +17,7 @@ Debug information generated at {{ now }} for Firefly III version **{{ FF_VERSION
 | --- | --- |
 | Firefly III | {{ FF_VERSION }} |
 | Firefly III API | {{ config('firefly.api_version') }} |
+| Build | {{ buildNr}}, {{ buildDate }} |
 | PHP | {{ phpVersion }} |
 | Host | {{ phpOs }} |