Add refs to atms, payment terminals, and vending machines (#428)

data/presets/amenity/atm.json

@@ -9,6 +9,7 @@
     ],
     "moreFields": [
         "branch_brand",
+        "ref",
         "brand",
         "covered",
         "height",

data/presets/amenity/payment_terminal.json

@@ -10,6 +10,7 @@
     ],
     "moreFields": [
         "branch_brand",
+        "ref",
         "covered",
         "currency_multi",
         "indoor",

data/presets/amenity/vending_machine.json

@@ -8,6 +8,7 @@
         "currency_multi"
     ],
     "moreFields": [
+        "ref",
         "blind",
         "branch_brand",
         "brand",