Icinga DB: Sync groups earlier

Host and service groups are structural information that are used
for Web filters and should therefore be synchronized as soon as
possible.

lib/icingadb/icingadb-objects.cpp

@@ -54,13 +54,13 @@ std::vector<Type::Ptr> IcingaDB::GetTypes()
 		Downtime::TypeInstance,
 		Comment::TypeInstance,
 
+		HostGroup::TypeInstance,
+		ServiceGroup::TypeInstance,
 		CheckCommand::TypeInstance,
 		Endpoint::TypeInstance,
 		EventCommand::TypeInstance,
-		HostGroup::TypeInstance,
 		Notification::TypeInstance,
 		NotificationCommand::TypeInstance,
-		ServiceGroup::TypeInstance,
 		TimePeriod::TypeInstance,
 		User::TypeInstance,
 		UserGroup::TypeInstance,