Godot Rollback Netcode addon

This is an addon for implementing rollback and prediction netcode in the Godot game engine.

Beyond the basics (gathering input, saving/loading state, sending messages, detecting mismatches, etc) this library aims to provide support for many of the other aspects of implementing rollback in a real game, including timers, animation, random number generation, and sound - along with high-quality debugging tools to make solving problems easier.

Implementing rollback and prediction is HARD, and so every little bit of help is important. :-)