Feat/snbt stack serialisation

[electronicboy]

Opening a PR because I generally forgot to and we might want more discussion on this;

I am planning to add an "sv" tag incase we want to change the format here or something, but, this is how this currently looks:

item:
  ==: org.bukkit.inventory.ItemStack
  components: '{"minecraft:written_book_content":{"title":{"raw":"Jon"},"author":"The
    Destroyer","pages":[{"raw":"hi"}]}}'
  count: 1
  DataVersion: 4325
  id: Minecraft:written_book

It's worth noting that I referenced the vanilla codec for what to serialise, and followed the logic which follows and adds the DV onto that; There was maybe a talk of extracting out the top layer of components;

  ==: org.bukkit.inventory.ItemStack
  components:
    minecraft:written_book_content: '{"title":{"raw":"Jon"},"author":"The Destroyer","pages":[{"raw":"hi"}]}'
    minecraft:max_damage: '20'
  sv: 2
  count: 1
  DataVersion: 4325
  id: minecraft:written_book

I generally want to avoid any stupid amounts of translating this as much as possible, but, may be willing to concede on this given that the top layer will basically always be a tag, note that all component values are strings, because json, this aspect will be non-negotiable

[mbax]

Welcome to paper 🥳

It appears you commit / generate a whole slew of completely unrelated and invalid changes.
Please make sure to remove them so we can review your PR change.

edit: Thank you! I look forward to more contributions from you in the future!

[lynxplay]

Generally in favour of a schema version, the name sv sounds rather unfun for it, the couple of characters schema or something would take are not gonna break our necks.

[electronicboy]

Yea, I just wasn't sure if I go for paper:schema_version or just s..._v... or what, so, figured I'd push before I went to go bed or be productive