Improve the project structure.

[Makosai]

We'll need the following things organized going forward:

Godot

• [ ] Move all godot related files into a folder named godot
• [ ] Create a scenes folder
• [ ] Move all scripts into the src folder
• [ ] Organize the rsc folder better (separate by interface, sprites, etc?)

Rust with Godot

• [ ] Setup gdext | Godot Rust
• [ ] Utilize MongoDB in Rust for Online gameplay
• [ ] Use PoloDB in Rust for Offline/Self-hosted gameplay