Python API: Re-adding rudimentary variable length array pack support.

Fixed bug in message-id mapping with non-consequtive APIs.

Change-Id: Icd6073e4655f7ce5432816861ae58915e5b336af
Signed-off-by: Ole Troan <ot@cisco.com>
diff --git a/vpp-api/python/tests/test_modules.py b/vpp-api/python/tests/test_modules.py
index f3066b2..48df175 100755
--- a/vpp-api/python/tests/test_modules.py
+++ b/vpp-api/python/tests/test_modules.py
@@ -14,4 +14,7 @@
 r = snat.snat_interface_add_del_feature(1, 1, 1)
 print('R:', r)
 
+list_name = 'foobar'
+r = pot.pot_profile_add(0, 1, 123, 123, 0, 12, 0, 23, len(list_name), list_name)
+print('R:', r)
 vpp_papi.disconnect()