Save/UI: add the save and load system

[NathanLovato]

No description provided.

[realkotob]

If help is welcome, I can easily add this feature in a short amount of code, I've added saving to the last 5 game jams I worked on using the same code template.

The first thing I do after creating a new project is drop this code file as an autoload 😄

It is almost an exact copy of the system suggested in the docs so I don't think the implementation will be divisive.

[NathanLovato]

Ah actually, there's already a save system. The issue has to do with coding the UI to save and load the game, show saved games to the player in the pause menu.
Thanks for offering your help :)

[realkotob]

Well let me know if you'd like help with that regardless :D

[NathanLovato]

Sure, contributions are always welcome!