Tooltips for Item List

[btwonion]

This PR adds the following tooltips to the items in the item list. Currently this only works for the REI plugin because EMI doesn't provide the ability to add tooltip providers, without overwriting EMI's rendering part.

~~I also fixed a bug, where the Crafting Cost tooltip tried being rendered when disabled, resulting in a null error.~~

EDIT: I also tried using the transformTooltip function for EntryTypes in the EntryRendererRegistry. This method is experimental and resulted somehow in the skyblock items not being rendered at all.