Adjusted casings_handle() to work on tools. Changed the item type of …

…Disorder to "tool" instead of "generic" (#59323)

data/json/items/gun/artisan_guns.json

@@ -29,7 +29,7 @@
     "id": "pulverizer",
     "copy-from": "hammer_sledge",
     "name": { "str": "the Disorder" },
-    "type": "GENERIC",
+    "type": "TOOL",
     "description": "A large, heavy sledge hammer converted for use as a weapon.  It features a notable safety on the side, and the back of the head has a firing mechanism that can be loaded with rifle blanks.  When the head impacts and the safety is off, the blanks are engaged, sending the moving piston forward and causing massive damage.  Etched into the head are the words 'she's lost control'.",
     "proportional": { "weight": 1.2 },
     "pocket_data": [ { "pocket_type": "MAGAZINE", "rigid": true, "ammo_restriction": { "powder_blank": 1 } } ],

src/item.cpp

@@ -11290,7 +11290,7 @@ int item::casings_count() const
 
 void item::casings_handle( const std::function<bool( item & )> &func )
 {
-    if( !is_gun() ) {
+    if( !is_gun() && !is_tool() ) {
         return;
     }
     contents.casings_handle( func );