Add an addon for automatically setting up [YAKD (Yet Another Kubernetes Dashboard)](https://github.com/manusa/yakd)
This is an alternative Kubernetes Dashboard with special support for Minikube, OpenShift, and other flavors of Kubernetes.
It was originally started as an example project for [YAKC (Yet Another Kubernetes Client)](https://github.com/manusa/yakc) but it was recently spun off as a separate project.
Regarding Minikube, it offers specific functionality such as cluster detection, support for opening NodePort services from the interface, and more.
The previous code had a copy of `config.toml` which is easy to get out of
sync. Instead, append the necessary configuration to the existing file
to retain the rest of the configuration.
Also changed the location where `runsc` is downloaded to use the latest
release instead of hardcondig to a release which gets old quickly.