[task] Config server for microservices

[ivicac]

For details check: https://docs.spring.io/spring-cloud-config/docs/current/reference/html/

Tasks:

• Implement config server and centralize configuration
• Add support in Redis/Aws Lambda discovery modules for DiscoveryClient to locate the Config Server [https://docs.spring.io/spring-cloud-config/docs/current/reference/html/#_spring_cloud_config_server]