Setup Grafana dashboard on Kubernetes

[sownak]

Description

As a Kubernetes operator I want to automatically add Grafana dashboard on the Kubernetes cluster so that I can add Grafana dashboards for different Blockchain platforms.

Acceptance Criteria

1. Add Grafana chart
2. Deploy grafana from shared playbooks so that all platforms deploy grafana.
3. Grafana enablement, passwords must be provided via network.yaml