Increase the size of the set of clothes pocket

When the set of clothes is limited to only 100 L and 100 kg, issues may
easily arise when wearing a lot of objects with lots of volume among
them, which has the potential to not let everything being worn be
inserted into the set of clothes, and potential loss of items when the
input volume or weight is larger than the limit during json verification
on save loading was bad.

data/json/items/containers/generic.json

@@ -179,8 +179,8 @@
     "pocket_data": [
       {
         "pocket_type": "CONTAINER",
-        "max_contains_volume": "100 L",
-        "max_contains_weight": "100 kg",
+        "max_contains_volume": "1000 L",
+        "max_contains_weight": "1000 kg",
         "rigid": false,
         "moves": 1000
       }