Make timeouts configurable

[dzolnierz]

In the driver we have places when we wait for code to execute until timed out. Editing code to increase timeouts is problematic. For example:

  145                 # Make sure task is completed
  146                 task = Client.ctx.client.get_task_monitor().wait_for_status(
  147                     task=is_disk_attached,
  148                     timeout=60,
  149                     poll_frequency=2,
  150                     fail_on_statuses=None,
  151                     expected_target_statuses=[
  152                         TaskStatus.SUCCESS, TaskStatus.ABORTED, TaskStatus.ERROR,
  153                         TaskStatus.CANCELED
  154                     ],
  155                     callback=None

Possible solution: add new option timeout to config file.