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