Feature: Add pod-level network status retrieval

[infinitydon]

Feature Description

Problem Statement:
Currently, there is no way to retrieve and display network status information at the POD level, specifically regarding IP assignments details. This information is crucial for displaying at a glance the network configurations, especially in scenarios
multiple network interfaces.

The network status information is not created at the deployment/statefulset level hence the reason for retrieving them at the POD level.

Proposed Solution:
Implement functionality to retrieve and display network status information from the POD level, including:

• Network Name
• Interface
• IP address assignments
• MAC addresses
• Default gateway information
• DNS configurations

Sample POD status is shown below:

Annotations:      k8s.v1.cni.cncf.io/network-status:
                    [{
                        "name": "mynet",
                        "interface": "eth0",
                        "ips": [
                            "10.244.0.122"
                        ],
                        "mac": "ce:8b:ac:34:58:a9",
                        "default": true,
                        "dns": {},
                        "gateway": [
                            "10.244.0.1"
                        ]
                    },{
                        "name": "core5g/o5gs-telco-amf-nad",
                        "interface": "net1",
                        "ips": [
                            "10.2.2.16"
                        ],
                        "mac": "4a:07:b7:b7:b7:99",
                        "dns": {}
                    }]
                  k8s.v1.cni.cncf.io/networks:
                    [
                      { "name": "o5gs-telco-amf-nad" }
                    ]

Alternatives Considered:
Using kubectl describe pod to view annotations but it doesn't provide a consolidated view

Additional Context:
This feature would be particularly valuable for:

• Troubleshooting network connectivity issues
• Validating Multus CNI configurations
• Monitoring IP address assignments
• Verifying network attachment definitions

This functionality is particularly important for environments using Multus CNI for multiple network attachments

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