Use official jupyter kernel for kotlin.

There is a lot of issues on the tracker about broken kotlin kernel. It uses obsolete hacks for cli interface and is very unstable.

I am rather happy to say that now there is the official JetBrains jupyter kernel: https://github.com/Kotlin/kotlin-jupyter. I think it makes sense to wrap it in beakerx autotranslation tooling or work with kotlin-DS team to negotiate some kind of common API, they are open for discussion.