MAPG-142 save user creation date

src/Cli/AddUserCommand.php

@@ -1,5 +1,6 @@
 <?php namespace MapGuesser\Cli;
 
+use DateTime;
 use MapGuesser\PersistentData\PersistentDataManager;
 use MapGuesser\PersistentData\Model\User;
 use Symfony\Component\Console\Command\Command;
@@ -24,6 +25,7 @@ class AddUserCommand extends Command
         $user->setEmail($input->getArgument('email'));
         $user->setPlainPassword($input->getArgument('password'));
         $user->setActive(true);
+        $user->setCreatedDate(new DateTime());
 
         if ($input->hasArgument('type')) {
             $user->setType($input->getArgument('type'));