[Feature]: Add the Crafting Calculator mod

[KingofSpiders13]

Feature Details

I'm probably going to just add this myself, but crafting calculators (although under-utilized) make mass producing items for a recipe (especially with recipes such as those in AE2) a lot easier.

[pietro-lopes]

Use our main issue for suggestions on mods, and I had bad performance with those calculators, so adding it to every player which only 0.1% might use is not what we might do