[idea] Simple recipe change

[jordsta95]

Had an idea, that I don't think you have in the line-up of updates. It's something that'd make pack makers' lives a little easier.

Right now if someone wants to change the item used in every recipe, they have to do
recipes.remove(Item);
recipes.addShaped/Shapeless(item, new recipe);

Maybe there could be something like:
recipes.replaceItem(output,[input1,input2,input3,...],[replacement 1, replacement 2,...]); so someone could do something like
recipes.replaceItem(minecraft:piston,[minecraft:iron_ingot],[minecraft:dirt]); and it'd replace the iron for dirt in the piston recipe, but you could also do
recipes.replaceItem(minecraft:iron_block,[minecraft:iron_ingot],[minecraft:dirt]); and that'd make it so 9 dirt makes an iron block