Reorganise the board JSON response

schemas/api/stations/board.json

@@ -5,15 +5,10 @@
     "description": "Arr/Dep/Pass Board",
     "type": "object",
     "properties": {
-        "n": {
-            "type": "string",
-            "title": "Location Name",
-            "description": "The name of the location"
-        },
-        "o": {
-            "type": "string",
-            "title": "Operator (if station)",
-            "description": "The operator of the station, if the location is a station"
+        "d": {
+            "title": "Metadata",
+            "type": "object",
+            "$ref": "#/definitions/metadata"
         },
         "s": {
             "title": "Services",
@@ -34,6 +29,22 @@
         "n"
     ],
     "definitions": {
+        "metadata": {
+            "type": "object",
+            "required": ["n", "o"],
+            "properties": {
+                "n": {
+                    "type": "string",
+                    "title": "Location Name",
+                    "description": "The name of the location"
+                },
+                "o": {
+                    "type": "string",
+                    "title": "Station Operator",
+                    "description": "The operator of the station (not present for location)"
+                }
+            }
+        },
         "boardService": {
             "type": "object",
             "required": [
@@ -95,6 +106,11 @@
                         }
                     }
                 },
+                "h": {
+                    "type": "string",
+                    "title": "Headcode",
+                    "description": "The headcode of the service"
+                },
                 "sta": {
                     "type": "string",
                     "format": "date-time",