No mystical agriculture platinum seed

[PasoLeaute]

Issue / Bug

Not sure this is a bug or not. I assumed the platinum seeds were intentionally left out but when I mentioned it in Darkosto's stream today he seemed to indicate it was a problem and I should submit this, so here I am.

Expected Behavior

Ability to craft platinum seed from mystical agriculture

Context

With all the platinum required for Galgador and the platinum singularity needed for the creative jetpack, it's going to be a struggle to come up with that much platinum strictly from void ore miners. Not impossible, just really inconvenient.

[justinrusso]

It appears Mystical Agriculture checks for what crops to make in preInit.

https://github.com/BlakeBr0/MysticalAgriculture/blob/8003210f22778efd4b39b1f2aba6932503b6448c/src/main/java/com/blakebr0/mysticalagriculture/proxy/CommonProxy.java#L48-L51

This appears to break any time an item is made after preInit, which, ideally, mods are registering items in the item registry event.