Opt: Handle movable enemy without POOR_MAP_DATA enabled and won't goto previous siren location

- Fix: enemy_genre merge
- Add: counter of map walk round
- Opt: Smarter enemy moving wait

module/exception.py

@@ -10,6 +10,10 @@ class MapWalkError(Exception):
     pass
 
 
+class MapEnemyMoved(Exception):
+    pass
+
+
 class CampaignNameError(Exception):
     pass