Implement Schema Changes for Infrastructure statistics to support Edge automation.

• HPA telemetry - capacity information in schema.
• Enhancements to ESR to indicate whether aggregation service is required for this edge-cloud at the ONAP.
• Enhancements to ESR to indicate Multi-Cloud for Multi-Cloud to listen for connections and statistics requests from the edge-clouds. Information such as CA cert to use to authenticate the remote party or any other UN/PWD method.