auto-assign map object hide/show flags

data/maps/Route9/map.json

@@ -152,7 +152,7 @@
       "trainer_type": 0,
       "trainer_sight_or_berry_tree_id": 0,
       "script": "Route9_EventScript_1BDF13",
-      "flag": "18"
+      "flag": "FLAG_0x012"
     },
     {
       "graphics_id": "MAP_OBJ_GFX_ITEM_BALL",
@@ -165,7 +165,7 @@
       "trainer_type": 0,
       "trainer_sight_or_berry_tree_id": 0,
       "script": "Route9_EventScript_1BE6B9",
-      "flag": "363"
+      "flag": "FLAG_0x16B"
     },
     {
       "graphics_id": "MAP_OBJ_GFX_ITEM_BALL",
@@ -178,7 +178,7 @@
       "trainer_type": 0,
       "trainer_sight_or_berry_tree_id": 0,
       "script": "Route9_EventScript_1BEAFD",
-      "flag": "450"
+      "flag": "FLAG_0x1C2"
     }
   ],
   "warp_events": [],