Sigilpack

I realized after the hotfix went out yesterday that I didn't properly test Inventorio when I ran into some issues with it voiding items in your inventory if you had identical items in your inventory and you used up a stack in your offhand. The mod will be removed from the pack entirely with the next update, but I'm putting out an update for anyone who wants to remove it sooner than that without any of the other changes planned for v1.6.