An attempt to speed up `multiCraft()` function creation logic
Before it created a table of items while it was trying to check them I've separated this so it just gets that out of the way and checks items in it's own `for` loop
Also added a `maxCreation` variable that users can edit if needed which decides how many of an item can be created (I'll change this soon probably to tie into the config options in scripts for multicraft again soon
Also removed a few `Wait()`s that were there to help it not get confused, but after testing I believe this didn't make a difference, let me know if there's any issues with stuff like it saying it can craft when you dont have the items
I unfortunately forgot to add this before when adding the extra exploit protection. Now demands an auth token before allowing crafting results to help reduce exploiters calling it externally
