consolidate "<crossing> (Raised)" presets into a field

see discussion here: https://github.com/openstreetmap/id-tagging-schema/pull/192#discussion_r762303214

data/fields/crossing_raised.json

@@ -0,0 +1,11 @@
+{
+    "key": "traffic_calming",
+    "type": "defaultCheck",
+    "label": "Raised",
+    "strings": {
+        "options": {
+            "undefined": "No",
+            "table": "Yes"
+        }
+    }
+}