Add missing packages

composer.json

@@ -35,7 +35,6 @@
         "toin0u/geotools-laravel": "^1.0",
         "anlutro/l4-settings": "0.6.0",
         "webpatser/laravel-uuid": "3.0.1",
-        "chrisbjr/api-guard": "4.1.0",
         "spatie/laravel-fractal": "5.3.0",
         "composer/semver": "1.4.2",
         "dg/rss-php": "1.2",
@@ -45,8 +44,10 @@
         "scriptfusion/phpunit-immediate-exception-printer": "1.3.0",
         "nwidart/laravel-modules": "2.6.0",
         "sebastiaanluca/laravel-helpers": "1.0.2",
+        "jackiedo/timezonelist": "5.x",
+        "tivie/php-os-detector": "1.1.0",
         "nabeel/laravel-installer": "dev-master",
-        "tivie/php-os-detector": "1.1.0"
+        "nabeel/vacentral": "dev-master"
     },
     "require-dev": {
         "phpunit/phpunit": "6.4.0",