Add Ethernet configuration API

[OhadMeir]

Tracked on [RSDEV-3754]

• Added C, CPP API
• Added CPP example of usage rs-eth-config
• Added Python wrapper API
• Added test cases to unit test that use new Python API
• Updated viewer to use new CPP API

[Copilot]

Pull Request Overview

This PR adds comprehensive Ethernet configuration API support across C, C++, and Python interfaces for RealSense devices. The implementation provides both low-level C functions and high-level C++ wrapper classes to configure Ethernet settings like IP addresses, link priorities, DHCP settings, and network parameters.

Key changes include:

• Added new C API functions for Ethernet configuration in rs.cpp and headers
• Created C++ wrapper class eth_config_device with comprehensive configuration methods
• Implemented Python bindings with IP address handling and enum support
• Updated existing viewer to use the new C++ API instead of direct hardware monitor commands

Reviewed Changes

Copilot reviewed 26 out of 26 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
src/rs.cpp	Implements core C API functions for Ethernet configuration using hardware monitor commands
include/librealsense2/hpp/rs_eth_config.hpp	Defines C++ wrapper class eth_config_device with type-safe configuration methods
include/librealsense2/h/rs_eth_config.h	Declares C API functions and enums for Ethernet configuration
wrappers/python/pyrs_eth_config.cpp	Python bindings for Ethernet configuration with IP address conversion utilities
unit-tests/live/config/test-eth-config.py	Updates test cases to use new Python API for validation
common/dds-model.cpp	Refactors viewer to use new C++ API instead of raw hardware monitor commands
examples/eth-config/rs-eth-config.cpp	Comprehensive example demonstrating all Ethernet configuration features

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[remibettan]

few comments

[remibettan]

very few comments

[remibettan]

LGTM

[Nir-Az]

Please update to :
cmake_minimum_required(VERSION 3.10)
Like other cmake lists.
see: #14219

[Nir-Az]

We have a CI for that on GHA but since it's running your branch you don't see it..

[Nir-Az]

Please resolve the min cmake version before merge otherwise all future PR's will fail

[Nir-Az]

LGTM