Adding an environment config file.

This common config file keeps common parameters like base URL at one place, usable by all the services.
Common configuration js gets created during build time. Maven build will create production config file.
updated all the modules to use baseURL from one place
Each module can have its own config file also

Change-Id: I925c15075491dc5e7d02487c5da658931b69e636
Signed-off-by: Harman Singh <harmasin@cisco.com>