사령턴 수행용 '지난턴' 추가

hwe/sammo/Command/NationCommand.php

@@ -2,5 +2,13 @@
 namespace sammo\Command;
 
 abstract class NationCommand extends BaseCommand{
+    protected $lastTurn;
 
+    public function setLast($lastTurn){
+        $this->lastTurn = $lastTurn;
+    }
+
+    public function getLast():array{
+        return $this->lastTurn;
+    }
 };