Create a tutorial - A few scenarios using `kwctl`

Take the current material from the kwctl repository and the common tasks section in the howto to (review/merge and) create a new tutorial section for kwctl with the title 'Using kwctl'

- in its repository at https://github.com/kubewarden/kwctl
- in the documentation at https://docs.kubewarden.io/howtos/tasks#kwctl-cli-tool

Show some examples of kwctl in use.