HostgroupRestriction: Allow creation of hosts if they match restricted groups filter

[raviks789]

fixes #2876

[slalomsk8er]

Does this relate to icingacli director hostgroups refreshMembers provides by:

diff --git a/application/clicommands/HostgroupsCommand.php b/application/clicommands/HostgroupsCommand.php
index 1007a05a..bfcfbe3c 100644
--- a/application/clicommands/HostgroupsCommand.php
+++ b/application/clicommands/HostgroupsCommand.php
@@ -3,6 +3,8 @@
 namespace Icinga\Module\Director\Clicommands;

 use Icinga\Module\Director\Cli\ObjectsCommand;
+use Icinga\Module\Director\Objects\HostGroupMembershipResolver;
+use ReflectionClass;

 /**
  * Manage Icinga Hostgroups
@@ -11,4 +13,11 @@ use Icinga\Module\Director\Cli\ObjectsCommand;
  */
 class HostgroupsCommand extends ObjectsCommand
 {
+    public function refreshMembersAction()
+    {
+        $resolver = new HostGroupMembershipResolver($this->db());
+        $reflection = new ReflectionClass($resolver);
+        $reflection->getMethod('getObjects')->invoke($resolver);
+        $resolver->refreshDb(true);
+    }
 }

in any way?

[nilmerg]

Seems fine I guess.