Moved N1kv section from neutron tree to stackforge
Moved N1kv section from neutron tree to stackforge

Since most of N1kv plugin code resides in stackforge/networking-cisco
repo, it's best to move the N1kv section here. Also added sync_interval
parameter to make time duration b/w consecutive VSM-neutron syncs
configurable.

Change-Id: Ia26b504a4135b12f003a89e3f19ff650e0d271a4
Closes-Bug: #1441400

hareeshpc/networking-cisco,CiscoSystems/networking-cisco,Gitweijie/first_project,Tehsmash/networking-cisco,openstack/networking-cisco,noironetworks/networking-cisco,hareeshpc/networking-cisco,Tehsmash/networking-cisco,Gitweijie/first_project,openstack/networking-cisco,CiscoSystems/networking-cisco,noironetworks/networking-cisco