[1.12.2 Feature Request] Contenttweaker ConArmTraitRepresentation addMultiItem function

[CrimsonTheWanderer]

Please describe the new feature or change.
addMultiItem is a function that allows you to add multiple items as a 'recipe' for applying a trait as a modifier in the armor forge.

Please describe why you want this feature.
Contenttweaker has this funciton for creating custom tinker's traits through Crafttweaker, which is very nice for being able to make recipes for modifiers that require more than one item for a single application.

It would make for a great parity feature that would allow the Construct Armory trait building through Contenttweaker to have the same capability.

Here is the specific file in reference that has this function.

[CrimsonTheWanderer]

Apologies. Just noticed that I was posting this to the original mod, not the Antique Armory fork. Though I will still keep this here in case you ever plan on it.