New keys.py for new readchar_linux (coming separately)

[suresttexas00]

No description provided.

[suresttexas00]

Sorry to do these separately.. I did not clone a copy.

[guiweber]

Thanks, works great : )

[suresttexas00]

I hate to do this, but I kind of gave up on this package some. I wrote a simpler, easier version that works well for my cross-platform needs (this one, sadly, does not).
Maybe check it out and see what you think? At least it might give you ideas for this repo.

https://github.com/suresttexas00/readkey

[guiweber]

Yes, I saw that and checked the code quickly. It looks really neat! The project I needed a keystroke reader for is done, but I'll definitely try it out if I need such a module for another project.

For now I'm just trying to get this PR merged because I think it can benefit other people who end up using the module.