New node command for adding/removing nodes from the cluster

[krotz-dieter]

Introduce a new command node for the k2s cli. With node we can add additional Linux and Windows nodes to an existing cluster, also remove them if needed.

k2s node add/remove

Linux OS support: Debian, Ubuntu Windows OS support: Windows 10,11 IoT, Windows Server 2022

Initially we need only support for additional worker nodes, no additional master nodes.

Implementation shall assume that node OS is in responsibility of the user, add/remove will only add and remove the needed K8s components to the OS and also join/remove the node from the existing cluster.