Add IDs; move moose into new CDDA themed NKIs

The moose originated from CleverRaven#27985, and was the only NKI not from the
original 1997 DOS version of robotfindskitten. Add a new snippet to the
category for CDDA-themed items, and add a couple of my own as well.

Include JSON comments noting the provenance of the original
robotfindskittens items.

data/json/snippets/robot_finds_kitten.json

@@ -1,5 +1,7 @@
 [
   {
+    "id": "original_nkis",
+    "//": "Original items from 1997 DOS version of robotfindskitten",
     "type": "snippet",
     "category": "non_kitten_items",
     "text": [
@@ -203,14 +205,14 @@
       "…thingy???",
       "It's 1000 secrets the government doesn't want you to know!",
       "The letters O and R.",
-      "A magical… magic thing.",
-      "That is a moose, a thing of pure evil.  You should \"RUN!\""
+      "A magical… magic thing."
     ]
   },
   {
+    "id": "latest_official_nkis",
+    "//": "Additional items from current official robotfindskitten game, GPL licensed",
     "type": "snippet",
     "category": "non_kitten_items",
-    "//": "Additional items from current official rfk",
     "text": [
       "\"201 Kitten Verbs, Fully Conjugated\".  You look for \"find\".",
       "\"50 Years Among the Non-Kitten Items\", by Ann Droyd.",
@@ -419,5 +421,16 @@
       "You've found the snows of yesteryear!  So that's where they all went to.",
       "You've found... Oh wait, that's just a cat."
     ]
+  },
+  {
+    "id": "cdda_themed_nkis",
+    "//": "Extra CDDA-themed items or memes",
+    "type": "snippet",
+    "category": "non_kitten_items",
+    "text": [
+      "That is a moose, a thing of pure evil.  You should \"RUN!\"",
+      "It's a half-drunk 200-liter tank of pine needle tea.",
+      "Here is a cargo space containing half a year's supply of pemmican."
+    ]
   }
 ]