Chest slot config 1.2.0

After a long wait: a favourite system is ready.
Kinda.

You can now save the current configuration of a chest as favourite and restore it in another chest.
Favourites of small and large wooden chests are separated and personal, every player has his own favourites.

At the moment, every favourite configuration gets a number assigned (counter, starting from 1). Naming a configuration is not possible yet (working on it),

Attention:
when deleting a saved configuration, all following numbers are decreased by 1.
example:
you got 5 saved configurations and delete #3.
4 will be the new 3 and 5 will be 4.