App: Godot Engine Editor

# App Suggestion

Full name: Godot Engine

Argument value: `godot`

Supports ligatures: needs investigation

Website:
- https://godotengine.org
- https://github.com/godotengine/godot

Versions: undecided

Platforms:
- macOS
- Linux
- Windows

## Motivation

Popular cross-platform game engine.

## Approach

Needs investigation.