Fix the sort order on ls-interfaces

The ls-interfaces option currently returns an array of strings
that are the string representation of dictionaries with data on
the wired interfaces.  This patch takes the result and converts
then to proper dictionaries, and then sorts the output to sort
on the interface names.   The output is further formatted to look
like the following:

interface: em1, mac address: 0c:c4:7a:eb:8c:16, switch IP: 192.168.0.1, port: xe-0/0/22:2
interface: em2, mac address: 0c:c4:7a:eb:8c:17, switch IP: 192.168.0.1, port: xe-0/0/22:3
interface: em3, mac address: b8:ca:3a:63:83:98, switch IP: 192.168.0.1, port: xe-0/0/20:2
interface: em4, mac address: b8:ca:3a:63:83:9a, switch IP: 192.168.0.1, port: xe-0/0/20:3

Fixes: #313
Change-Id: If01ecf56691059561a214c7c4e03933be5cc06a5

bin/quads-cli

@@ -15,6 +15,7 @@
 # along with QUADs.  If not, see <http://www.gnu.org/licenses/>.
 
 import argparse
+import json
 import asyncio
 from datetime import datetime
 import functools
@@ -109,9 +110,15 @@ def main(_args):
                 logger.error("Could not connect to the quads-server, verify service is up and running.")
                 exit(1)
             if data:
-                for interface in data["result"]:
-                    logger.info(interface)
-                exit(0)
+                result = [json.loads(entry) for entry in data['result']]
+                for interface in sorted(result, key=lambda k: k['name']):
+                    message = \
+                        f"interface: {interface['name']}, " \
+                        f"mac address: {interface['ip_address']}, " \
+                        f"switch IP: {interface['ip_address']}, " \
+                        f"port: {interface['switch_port']}"
+                    logger.info(message)
+            exit(0)
 
         if _args.action == 'schedule':
             if _args.host: