Plugin SDK

> [!IMPORTANT]
> This issue belongs to the MVP phase, see [MVP.md](https://github.com/quansat-dev/dot/blob/mvp/docs/MVP.md#plugin-to-engine-interprocess-communication) for more information.

## References

- [LuaRocks](https://github.com/luarocks/luarocks): may be relevant if we want a modular package for reusable across plugins