Relocate haproxy and VIPs to the network namespace

Includes:
* OCF script for managing VIP inside network namespace
* OCF script for managing haproxy inside network namespace
* changes in manifests

blueprint relocate-haproxy-to-its-own-network-namespace

Change-Id: I11a77920a0f0cf3827e52630f95f23e2eb4a965b
Merge "Relocate haproxy and VIPs to the network namespace"