Modify print_list/dict/items methods of kamaki.cli.utils to be simpler
    and print output in a simpler form

    key: value
    key:
        key: value
        key:
            key: value
            ...
        key:
            list-item

            list-item
        key-for-list-of-dicts:
            key: value
            key: value

            key: value
            ...