designate record-list should display record data

designate record-list currently only displays id, type and name. It would be
very useful if the actual data was also displayed, as running a record-get on
each id to obtain this information is very time-consuming.

This patch improves the output so that it is in the following format:

+--------------------------------------+------+-----------------------------+--------------+
| id                                   | type | name                        | data         |
+--------------------------------------+------+-----------------------------+--------------+
| 8a6b789b-71bc-43b6-91eb-9a0790ee1052 | A    | netapp-c1.rc.nectar.org.au. | 172.22.20.71 |
| aa609885-3f8d-4ed6-9de4-3204448281e1 | A    | netapp-c2.rc.nectar.org.au. | 172.22.20.72 |
+--------------------------------------+------+-----------------------------+--------------+

Change-Id: I9ca85b64505d3331fd0bd458c31163cc243e7b34
Closes-Bug: #1308414