feat: add event-patterns command group (list, get)

[notnmeyer]

➜ task -- event-patterns -h

  Manage event patterns

  USAGE


    loops event-patterns [command] [--flags]


  COMMANDS

    get [--flags]   Get an event pattern by id or name
    list [--flags]  List event patterns

  FLAGS

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