chore: workflows add workflows command

[notnmeyer]

adds a workflows subcommand covering the new api endpoints.

➜ loops workflows -h

  Manage workflows

  USAGE


    loops workflows [command] [--flags]


  COMMANDS

    get <id>         Get a workflow
    list [--flags]   List workflows
    nodes [command]  Manage workflow nodes

  FLAGS

    --debug          Print API request details before sending
    -h --help        Help for workflows
    -o --output      Output format (text, json) (text)
    -t --team        Team key name to use