Formatting: Add formatIPAddress func

[Farkhanda-Dalal]

Description:
The formatIPAddress(ip) function will normalize IPv4 and IPv6 addresses by removing unnecessary leading zeros and compressing IPv6 notation.

Acceptance Criteria:

"192.168.001.001" → "192.168.1.1"
"2001:0db8:0000:0000:0000:ff00:0042:8329" → "2001:db8::ff00:42:8329"

IPv4: strip leading zeros from each segment.

IPv6: apply zero compression rules.

Add unit tests for valid IPv4, IPv6, and invalid inputs.

[AadityaBansal01]

Hi! I am a GSSoC contributor. Could you please assign this issue to me? I would like to work on it and contribute to the project.

Thank you!