Suppress CF Specific properties from being added to app deployed into k8s cluster

[bvkradha]

Problem description:
Primary issue is described in here.

Basically apps deployed by SCDF in k8s cluster is injecting CF specific variables.

Solution description:
Should have an ability to control properties from being set in both CF and K8s environments, so these are controlled externally by the app and not injected by default.

We use config server and each deployed app talks to config server to determine what it needs to do, this way we can control tags, actuator endpoints that we expose out of the app and control all config at one location. Makes update to those properties much more easier.

Second, even if its mandated by default, it should determine the environment it is deployed on and change behavior based on it.