Consider move from ES to Prometheus for Metrics collection

I highly recommend adding Prometheus metrics for collecting storage and distributed nodes metrics. This enable each node to collect , store and service it is own metrics. Introducing the following advantages:

- Making the solution more scalable and flexible.
- Increasing the metrics storage capacity.
- Minimize the risk of loosing the data that ES store in a centralized server.
- Industry standard.
- Allow to utilize a more flexible data collection and alerting
- FREE

https://prometheus.io/docs/concepts/data_model/