Bug 1826: moving clustering test application from integration branch to controller

This test application is used by robo test cases for clustering

patch 4:
fixed the overwrite of wrong groupId fix in patch 2
Patch 3:
Basheeruddin just included module-shards.conf and modules.conf for
clustering test app

Change-Id: Iac47e986e36662b1f61e711a194a8c72c8c76a29
Signed-off-by: Harman Singh <harmasin@cisco.com>
Signed-off-by: Basheeruddin Ahmed <syedbahm@cisco.com>
Merge "Bug 1826: moving clustering test application from integration branch to controller"