Include SECONDARY zones into list command output

PRIMARY zone type is set by default, so SECONDARY
zones were not included in the command output.
Now all types are in output by default and specific type
can be passed as an argument like before

Closes-Bug: #1940544
Change-Id: Idbba68ebd3f74bde74f0b50ffcb233673dff2303

designateclient/v2/cli/zones.py

@@ -56,7 +56,7 @@ class ListZonesCommand(command.Lister):
         parser.add_argument('--email', help="Zone Email", required=False)
         parser.add_argument('--type', help="Zone Type",
                             choices=["PRIMARY", "SECONDARY"],
-                            default="PRIMARY",
+                            default=None,
                             required=False)
         parser.add_argument('--ttl', help="Time To Live (Seconds)",
                             required=False)

releasenotes/notes/bug-1940544-9ed7805341dec1ba.yaml

@@ -0,0 +1,6 @@
+---
+
+fixes:
+  - |
+    Include SECONDARY zone type to 'zone list' command output. Previously only
+    PRIMARY zones were shown