Add field species:wikidata to plant objects (#320)

* Update hedge.json
* Update tree_row.json
* Update wood.json
* Update scrub.json

data/presets/barrier/hedge.json

@@ -3,6 +3,9 @@
     "fields": [
         "height"
     ],
+    "moreFields": [
+        "species/wikidata"
+    ],
     "geometry": [
         "line",
         "area"

data/presets/natural/scrub.json

@@ -1,5 +1,10 @@
 {
     "icon": "temaki-shrub",
+    "moreFields": [
+        "leaf_type",
+        "leaf_cycle",
+        "species/wikidata"
+    ],
     "geometry": [
         "area"
     ],

data/presets/natural/tree_row.json

@@ -5,6 +5,9 @@
         "leaf_cycle",
         "denotation"
     ],
+    "moreFields": [
+        "species/wikidata"
+    ],
     "geometry": [
         "line"
     ],

data/presets/natural/wood.json

@@ -5,6 +5,9 @@
         "leaf_type",
         "leaf_cycle"
     ],
+    "moreFields": [
+        "species/wikidata"
+    ],
     "geometry": [
         "area",
         "point"