multiverse: oven

This mod adds an oven to be used in multiverse's survival module. Its code base is based on Emma's/Boundery's Simple kiln which is under MIT, and the texture's from mycraft, also under MIT.

Note for modders: due to an issue with simple kiln's code base, at least in my tests, both simple kiln and this oven mod can't be used in a dev environment. I'm frankly surprised that the mods work in the normal game. If you want to add recipes to this, use the smelting recipe base, but instead it's 'oven:cooking' and test it out in a datapack, in my testing, neither mod can be included in another jar either.