Add grave preset (#522)

Author: arch0345

data/presets/cemetery/grave.json

@@ -0,0 +1,22 @@
+{
+    "icon": "maki-cemetery",
+    "fields": [
+        "name",
+        "inscription"
+    ],
+    "moreFields": [
+        "description"
+    ],
+    "geometry": [
+        "point",
+        "area"
+    ],
+    "tags": {
+        "cemetery": "grave"
+    },
+    "terms": [
+        "mausoleum",
+        "tomb"
+    ],
+    "name": "Grave"
+}