Reformat clone objects in JSON

data/maps/SSAnne_1F_Corridor/map.json

@@ -16,6 +16,7 @@
   "connections": null,
   "object_events": [
     {
+      "type": "object",
       "graphics_id": "OBJ_EVENT_GFX_SAILOR",
       "x": 18,
       "y": 8,
@@ -29,6 +30,7 @@
       "flag": "0"
     },
     {
+      "type": "object",
       "graphics_id": "OBJ_EVENT_GFX_WORKER_M",
       "x": 12,
       "y": 9,