Added k8s pod to pod connectivity for starlingx pytest framework

Include:
-added automated test case for pod to pod connectivity
-added pod related yaml files
-fixed test cases dvr, multiple ports, ping vms, and
vm meta data retrieval

Story: 2007406
Task: 39009

Change-Id: Ib20ee48d4a3769da449dc0fe487ea35cd812fb17
Author: Ayyappa Mantri <ayyappa.mantri@windriver.com>
Co-Authored-By: Yvonne Ding <yvonne.ding@windriver.com>
Signed-off-by: Yvonne Ding <yvonne.ding@windriver.com>

automated-pytest-suite/consts/proj_vars.py

@@ -40,7 +40,8 @@ class ProjVar:
                   'INSTANCE_BACKING': {},
                   'OPENSTACK_DEPLOYED': None,
                   'DEFAULT_INSTANCE_BACKING': None,
-                  'STX_KEYFILE_PATH': '~/.ssh/id_rsa'
+                  'STX_KEYFILE_PATH': '~/.ssh/id_rsa',
+                  'IPV6_OAM': None,
                   }
 
     @classmethod