Inventory system update (Patreon)

This weekend I've improved the inventory system to work more reliably, fixed a duplication bug, added give and pay functions, added multiple inventory support and more importantly, added examples of how to use it.
it is ready for simple games now, you can do most things that a game needs through the script without worrying how the code works.
Next is adding a shop interface to make selling and buying easy for more advanced games.
Download it from the attachments and give it a try.