Add options and strings for flag:type (#1899)

Author: 1ec5

data/fields/flag/type.json

@@ -1,5 +1,20 @@
 {
     "key": "flag:type",
     "type": "combo",
-    "label": "Flag Type"
+    "label": "Flag Type",
+    "strings": {
+        "options": {
+            "advertising": "Advertising",
+            "athletic": "Athletic",
+            "cultural": "Cultural",
+            "governmental": "Governmental",
+            "indigenous": "Indigenous",
+            "religious": "Religious",
+            "organisation": "Organizational",
+            "military": "Military",
+            "municipal": "Municipal",
+            "national": "National",
+            "regional": "Regional"
+        }
+    }
 }