update lifeboat station preset (#382)

data/presets/emergency/lifeboat_station.json

@@ -3,6 +3,7 @@
     "fields": [
         "name",
         "operator",
+        "seamark/rescue_station/category",
         "address",
         "building_area",
         "phone",
@@ -19,10 +20,17 @@
         "area"
     ],
     "terms": [
+        "lifeboat",
+        "rescue",
+        "search and rescue",
+        "life saving",
         "boat rescue"
     ],
     "tags": {
         "emergency": "lifeboat_station"
     },
+    "addTags": {
+        "seamark:type": "rescue_station"
+    },
     "name": "Lifeboat Station"
 }