Setup Spring Boot Actuator to provide a health endpoint that we can leverage for exposing application health information and also later on other useful production-ready features.

References:

• https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html
• https://docs.spring.io/spring-boot/docs/current/actuator-api/html/ 

1. ONAP requirements? (Need to investigate as part of this US)