Add a heuristic for detecting slice moves.

[cubing]

Add a heuristic for detecting slice moves.

[lgarron]

Yeah, I'm not sure we necessarily need this in the base library. We certainly shouldn't enable it by default. But making this easy to use might require some sort of heuristic plugin/callback API.

[jfly]

(Warning: high level thought that might not fit with your goals here). Is this project meant to be a javascript library to help you interface with a Giiker/GoCube/XYZ bluetooth connected Rubik's cube? If so, then I feel like the sort of heuristic defined in the original post is outside of the scope of what I'd expect such a library to do. I'd rather that the library have support for cubing/cuble.js#4, and that users of the library would be able to easily build rotation heuristics like this themselves.