Add example showcasing how to use Scryer as a scripting layer on top of Rust

[ValorZard]

Going off the response of this discussion post:
#3101 (comment)

It would be nice to see that "IPC" thing as an actual example (or directly exposing Rust structs and functions somehow to Prolog)

[ValorZard]

Something that could totally be possible (maybe) is somehow using Prolog with Bevy, treating Bevy's ECS like a database