driver-list command to show the list of conductors

The commit https://review.openstack.org/#/c/60216/ returns the name of the
drivers and also a list of active conductors that supports each driver,
this patch makes the necessary changes to expose that information on
the driver-list command.

Change-Id: I9183b40422f6dc3193570703d25d47b6e8edde06
ironic client should display chassis_uuid value

Our Node API return chassis_uuid value correctly, but ironic client
display chassis_id with empty value, so change to chassis_uuid.

Change-Id: I585dd3f7fb4e5a416ee0e47ac1f3d0c337da056b
Closes-Bug: #1265785
Merge "driver-list command to show the list of conductors"