Add Hainan coast scenario

data/campaign/campaign.json

@@ -313,6 +313,11 @@
       "id": "062_southern_fleet",
       "title": "Southern Fleet",
       "path": "res://data/scenarios/062_southern_fleet.json"
+    },
+    {
+      "id": "063_hainan_coast",
+      "title": "Hainan Coast",
+      "path": "res://data/scenarios/063_hainan_coast.json"
     }
   ]
 }