[feat] Adding new standard control plane dashboards for windowsebpf p…

[vakalapa]

Description

Drops Analysis Dashboard

1. Focused view for identifying and troubleshooting packet drops
2. Includes drop rate analysis by reason, direction, pod, and namespace
3. Features stat tiles for at-a-glance metrics and detailed visualizations (heatmaps, pie charts, correlation charts)

Overview Dashboard

1. High-level operational view with 6 key metric stat tiles
2. Displays total forward traffic (packets/bytes), drops, drop percentage, and active resources
3. Top 10 pod analysis for incoming/outgoing traffic
4. TCP flags distribution and traffic heatmaps for pattern identification

Namespace Deep Dive Dashboard

1. Detailed pod-level analysis scoped to specific namespaces
2. Pod traffic summary with sparklines and gauges
3. Workload type breakdown (DaemonSet, Deployment, etc.)
4. Direction-based traffic analysis with comprehensive heatmaps

Screenshots (if applicable) or Testing Completed

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Please refer to the CONTRIBUTING.md file for more information on how to contribute to this project.

[anubhabMajumdar]

Can we edit existing dashboard https://github.com/microsoft/retina/blob/main/deploy/grafana-dashboards/standard-pod-level.json instead of creating new ones?
Also, why create separate directory for windows-ebpf as standard control plane is data plane agonistic.