Move local IDs to map.json

data/maps/MtEmber_Exterior/map.json

@@ -30,6 +30,7 @@
       "flag": "0"
     },
     {
+      "local_id": "LOCALID_MT_EMBER_GRUNT1",
       "type": "object",
       "graphics_id": "OBJ_EVENT_GFX_ROCKET_M",
       "x": 41,
@@ -44,6 +45,7 @@
       "flag": "FLAG_HIDE_MT_EMBER_EXTERIOR_ROCKETS"
     },
     {
+      "local_id": "LOCALID_MT_EMBER_GRUNT2",
       "type": "object",
       "graphics_id": "OBJ_EVENT_GFX_ROCKET_M",
       "x": 42,