message: add find multiple option
diff: @@ -112,18 +112,23 @@ def find_all(path, serial_number,
  def find_any(path="usb", serial_number=None,
  search_cancellation_token=None, channel_termination_token=None,
  - timeout=None, logger=Logger(verbose=False)):
  + timeout=None, logger=Logger(verbose=False), find_multiple=False):
  """
  Blocks until the first matching Fibre node is connected and then returns that node
  """
  - result = [ None ]
  + result = []
  done_signal = Event(search_cancellation_token)
  def did_discover_object(obj):
  - result[0] = obj
  + result.append(obj)
  + if not find_multiple:
  done_signal.set()
  +
  find_all(path, serial_number, did_discover_object, done_signal, channel_termination_token, logger)
  try:
  done_signal.wait(timeout=timeout)
  finally:
  done_signal.set() # terminate find_all
  + if find_multiple:
  + return result
  + else:
  return result[0]
  