add more fields to the wilderness_hut preset

data/fields/kitchen.json

@@ -0,0 +1,5 @@
+{
+    "key": "kitchen",
+    "type": "check",
+    "label": "Kitchen"
+}

data/fields/mattress.json

@@ -0,0 +1,5 @@
+{
+    "key": "mattress",
+    "type": "check",
+    "label": "Mattresses Available"
+}