refac: KVStorage의 내부구조를 Ds\Map으로 변경

hwe/sammo/Event/Action/BlockScoutAction.php

@@ -15,7 +15,7 @@ class BlockScoutAction extends \sammo\Event\Action{
             'scout'=>1
         ], true);
         if($this->blockChangeScout !== null){
-            $gameStor = new KVStorage($db, 'game_env');
+            $gameStor = KVStorage::getStorage($db, 'game_env');
             $gameStor->setValue('block_change_scout', $this->blockChangeScout);
         }