Add historic=aircraft preset (#1556)

data/fields/aircraft/model.json

@@ -0,0 +1,5 @@
+{
+    "key": "aircraft:model",
+    "type": "combo",
+    "label": "Aircraft Model"
+}

data/fields/aircraft/model/wikidata.json

@@ -0,0 +1,9 @@
+{
+    "key": "aircraft:model:wikidata",
+    "keys": [
+        "aircraft:model:wikidata",
+        "aircraft:model:wikipedia"
+    ],
+    "type": "wikidata",
+    "label": "Aircraft Model Wikidata"
+}

data/fields/aircraft/type.json

@@ -0,0 +1,16 @@
+{
+    "key": "aircraft:type",
+    "type": "combo",
+    "label": "Type",
+    "strings": {
+        "options": {
+            "military": "Military",
+            "helicopter": "Helicopter",
+            "airliner": "Airliner",
+            "jet": "Jet",
+            "fixed_wing": "Fixed Wing",
+            "cargo": "Cargo",
+            "glider": "Glider"
+        }
+    }
+}

data/fields/manufacturer/wikidata.json

@@ -0,0 +1,9 @@
+{
+    "key": "manufacturer:wikidata",
+    "keys": [
+        "manufacturer:wikidata",
+        "manufacturer:wikipedia"
+    ],
+    "type": "wikidata",
+    "label": "Manufacturer Wikidata"
+}