supplydrop bulk crate (#40216)

data/json/itemgroups/military.json

@@ -402,6 +402,25 @@
       { "item": "20x66_inc", "prob": 2 }
     ]
   },
+  {
+    "type": "item_group",
+    "id": "mil_bulk",
+    "//": "A bulk of uniform goods all of the same type likely found in a shipping crate",
+    "subtype": "distribution",
+    "entries": [
+      { "item": "mil_mess_kit", "prob": 10, "count": 32 },
+      { "item": "voltmeter", "prob": 10, "count": 32 },
+      { "item": "drivebelt", "prob": 10, "count": 64 },
+      { "item": "grapnel", "prob": 10, "count": 32 },
+      { "item": "string_floss", "prob": 5, "count": 128 },
+      { "item": "toothbrush_plain", "prob": 5, "count": 128 },
+      { "item": "sm_extinguisher", "prob": 5, "count": 16 },
+      { "item": "fire_ax", "prob": 5, "count": 16 },
+      { "item": "manual_stabbing", "prob": 5, "count": 64 },
+      { "item": "manual_rifle", "prob": 5, "count": 64 },
+      { "item": "m17", "prob": 3, "count": 32 }
+    ]
+  },
   {
     "type": "item_group",
     "id": "mil_food",

data/json/items/generic/bathroom_house.json

@@ -96,6 +96,7 @@
     "name": { "str": "dental floss", "str_pl": "rolls of dental floss" },
     "type": "GENERIC",
     "description": "Twenty-five yards of finely waxed thread wound up inside a plastic container.  Perfect for picking bits of smoked meat out of your teeth.  Disassemble to use the thread for something else.",
+    "weight": "28 g",
     "copy-from": "base_toiletries",
     "symbol": "~",
     "material": [ "plastic", "cotton" ]

src/map_extras.cpp

@@ -930,6 +930,8 @@ static bool mx_supplydrop( map &m, const tripoint &/*abs_sub*/ )
         std::string item_group;
         switch( rng( 1, 10 ) ) {
             case 1:
+                item_group = "mil_bulk";
+                break;
             case 2:
             case 3:
             case 4: