[FEATURE] IpConfig Command Implementation

[Kaveeshakavindi]

Is your feature request related to a problem? Please describe.
Yes, currently the custom shell MyCMD does not have a command to display network configuration. Users cannot easily view their IP addresses, network interfaces, or verify connectivity directly from the shell.

Describe the solution you'd like
Implement a new ipconfig command in MyCMD that:

• Lists all network interfaces on the machine.
• Displays the IP address of each interface.
• Provides optional details like MAC address and interface status (up/down) in future enhancements.
• Integrates with the existing Command interface and can be executed from the shell using ipconfig.

Describe alternatives you've considered

• Asking users to run the OS-specific ipconfig (Windows) or ifconfig/ip a (Linux/Mac) outside of the shell.
• Using a third-party library for network configuration retrieval.
  The implemented Java command is cross-platform and doesn’t rely on external commands, making it more portable.

Additional context

• The command has been implemented in IpConfig.java under com.mycmd.commands.
• The feature has been tested in both standalone mode and inside the shell, confirming that it correctly lists network interfaces and IP addresses.
• Future improvements could include displaying subnet masks, default gateway, and DNS servers.

[github-actions]

👋 Hi @Kaveeshakavindi!

Thanks for opening an issue in MyCMD.

We’ll review it soon — please ensure reproduction steps and logs are included.

[Kaveeshakavindi]

#64