1.4.1.163

The one that cleans up some c++ linking issues

• New: LootItem and PlaceItemIntoSlot now attempt to stack items into other items that allow stacking. Both may return false now if the item was partially added to the inventory.
• New: SwapItemSlots now accepts empty item slots as valid swap targets
• Fix: Added ARCINVENTORY_API to a number of constants and the native tags
• Fix: Fixed a linux linker error in unity builds caused by reusing a same name. This only occours on clang.