use simple access field for some presets

* renamed access_toilet field to access_simple
* use it also for parkings, entrances and swimming_pools

fixes #1953

data/presets/presets/amenity/parking.json

@@ -4,6 +4,7 @@
         "parking",
         "capacity",
         "fee",
+        "access_simple",
         "supervised",
         "park_ride",
         "address"

data/presets/presets/amenity/toilets.json

@@ -3,7 +3,8 @@
         "toilets/disposal",
         "operator",
         "building_area",
-        "access_toilets"
+        "fee",
+        "access_simple"
     ],
     "geometry": [
         "point",

data/presets/presets/entrance.json

@@ -8,6 +8,7 @@
     },
     "fields": [
         "entrance",
+        "access_simple",
         "address"
     ],
     "name": "Entrance"

data/presets/presets/leisure/swimming_pool.json

@@ -1,4 +1,7 @@
 {
+    "fields": [
+        "access_simple"
+    ],
     "geometry": [
         "point",
         "vertex",