* update doc/*/scripting/builtins/libinventory.md * add doc/*/scripting/builtins/libgfx-weather.md * update doc/*/scripting/builtins/libfile.md * update doc/*/item-properties & update doc/*/scripting/builtins/libinventory.md * add inventory.decrement docs * update doc/*/scripting/builtins/libinventory.md