import { ItemHelper } from "https://deno.land/x/sptaki@1.2.0/helpers/mod.ts";
Add child slot items to an item, chooses random child item if multiple choices exist
Parameters
itemToAdd: Item[]
array with single object (root item)
itemToAddTemplate: ITemplateItem
Db tempalte for root item
Optional dictionary of mod name + % chance mod will be included in item (e.g. front_plate: 100)