[Feature]: Allow setup with config file

[Liquid-Blocks]

Overview

Instead of reloading the whole virtual environment every time we change location, we have the virtual environment read a config file and present the world accordingly.

Specifications

The constructor must be able to take:

1. a URL to a .json config file.
2. a js Object containing a config.

A basic config file should ideally look something like:

{
    "version": 1,
    "terrain": {
        "url": "./assets/terrains/baseTemplate.glb"
    }
}

Anything else?

No response