Adds missing knives to the Krav Maga list (#51131)

* Add files via upload

Adds missing knives to the Krav Maga list. Considering some of the ones already on the list, such as makeshift and bone knives, ones like the kukri should all definitely be included as well

* Update martialarts.json

Missed a comma. Oops!

* Update martialarts.json

No, I forgot to MOVE a comma.
Dumb

data/json/martialarts.json

@@ -690,7 +690,19 @@
       "steyr_aug",
       "tanto",
       "tanto_inferior",
-      "tanto_fake"
+      "tanto_fake",
+      "kirpan",
+      "kirpan_cheap",
+      "kris",
+      "kris_fake",
+      "kukri",
+      "knife_butcher",
+      "knife_carving",
+      "knife_chef",
+      "knife_steak",
+      "pockknife",
+      "punch_dagger",
+      "sword_bayonet"
     ]
   },
   {