Inventory natives

native int       UnitInventoryContainer (unit inUnit);
native int       UnitInventoryCount (unit inUnit, int inCountType);
native unit      UnitInventoryCreate (unit inUnit, string itemType);
native unitgroup UnitInventoryGroup (unit inUnit);
native int       UnitInventoryIndex (unit inItem);
native unit      UnitInventoryItem (unit inUnit, int inIndex);
native unit      UnitInventoryLastCreated ();
native void      UnitInventoryMove (unit inItem, int inContainer, int inSlot);
native void      UnitInventoryRemove (unit inItem);
native int       UnitInventorySlot (unit inItem);
native unit      UnitInventoryUnit (unit inItem);