Downloading prhConf fromConsul

*Added backGround task for downloading
dynamic Configuration from Consul
*This configuration can pass for Kubernetes
and heat (bare metal) deployment
*Parsing/validation configuration from system
environment

Change-Id: I937cbda1bc8b715dc3e754bea8a39dd141180e49
Issue-ID: DCAEGEN2-696
Signed-off-by: wasala <przemyslaw.wasala@nokia.com>
12 files changed