Create the update command for all registered plugins.

NewCmdCompletion creates the `completion` command.

NewRootCmd initializes the root cobra command including all the flags on root level.

NewRootCmdOptions creates a new option structure for the the root cli command.

NewRunSingleCommand creates a new run command for the given plugin.

NewRunSingleOptions create a new instance of the RunSingleOptions for the given plugin.

RootCommandOptions stores the the values for global command flags like the kubeconfig and context name.

RunSingleOptions contains all options and information that are needed to run a single plugin from the command line.

PreRunInit defines the interface for small helper functions which will perform a late initialization of some already initialized object instances.