make building=train_station.json searchable

Author: novolife

data/presets/building/_train_station.json data/presets/building/train_station.jsondata/presets/building/_train_station.json renamed to data/presets/building/train_station.json

@@ -1,14 +1,16 @@
 {
     "icon": "maki-building",
     "geometry": [
-        "point",
-        "vertex",
         "area"
     ],
     "tags": {
         "building": "train_station"
     },
+    "terms": {
+        "halt",
+        "railway station",
+        "terminal"
+    },
     "matchScore": 0.5,
-    "name": "Train Station Building",
-    "searchable": false
+    "name": "Train Station Building"
 }