match "white goods" to shop=appliance (#864)

based on https://wiki.openstreetmap.org/wiki/Tag:shop%3Dappliance

Author: matkoniecz

data/presets/shop/appliance.json

@@ -17,7 +17,8 @@
         "refrigerator",
         "stove",
         "washer",
-        "washing machine"
+        "washing machine",
+        "white goods"
     ],
     "tags": {
         "shop": "appliance"