Create spring cloud configuration git

@raphael.flores I've added spring cloud configuration to the GPDS backend, we would need to create a configuration server (or re-use the data-discovery-config server). What would you recommend?

TODO:

Configure .gitlab-ci.yaml file for deployment
Create or re-use the data-discovery-config server
YAML configurations for prod (public) + /beta/gnpis/gpds + /staging/gnpis/gpds /int/gnpis/gpds (privé) + /private/gnpis/gpds (privé)
Update GPDS README.md to document the spring cloud configuration

Edited Feb 21, 2019 by Guillaume Cornut

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information