Feature request

Feature description
Slimefun backpack support

How the feature is useful
As the slimefun plugin backpacks and minepacks plugin backpacks cannot be used together properly, could we have intergration to use slimefun packs instead or as well as minepacks?

What is the problem when using both plugins?

If you're using both slimefun backpacks and minepack backpacks, the console errors when opening a backpack as slimefun thinks its from slimefun, when it is actually from minepacks :<

Error is caused by Slimefun. Nothing I can do about it. Please report it to them.