fix: Thermoblade can boil water (#4570)

Made thermoblade able to boil water

For some reason the list of tools required to boil something is different from the list of tools required to cook something, but they both use an open flame, so the thermoblade fits there too.

data/json/requirements/cooking_tools.json

@@ -49,7 +49,8 @@
         [ "toolset", 1 ],
         [ "coffeemaker", 1 ],
         [ "atomic_coffeepot", -1 ],
-        [ "fire", -1 ]
+        [ "fire", -1 ],
+        [ "knife_heat", -1 ]
       ]
     ]
   }

data/mods/Aftershock/recipes/requirements.json

@@ -27,7 +27,8 @@
         [ "coffeemaker", 1 ],
         [ "atomic_coffeepot", -1 ],
         [ "afs_atompot", -1 ],
-        [ "fire", -1 ]
+        [ "fire", -1 ],
+        [ "knife_heat", -1 ]
       ]
     ]
   }