Feature: enable multiple interfaces in one sketch

[hideakitai]

Related:

• Choosing between WiFi and Ethernet during runtime #128

[Copilot]

Pull Request Overview

This PR enables multiple interfaces to be used in one sketch by refactoring the Artnet library to use interface-specific class names and removing the generic Artnet.h header that prevented multiple interfaces.

• Removes generic Artnet.h header that caused conflicts when using multiple interfaces
• Updates all interface-specific headers to use prefixed class names (e.g., ArtnetWiFi, ArtnetEther)
• Updates all example files to use the new interface-specific class names

Reviewed Changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Artnet.h	Completely removed to eliminate interface conflicts
ArtnetWiFi.h	No changes shown in diff
ArtnetEther.h	Updated class names from generic to ArtnetEther prefix
ArtnetEtherENC.h	Updated class names from generic to ArtnetEtherENC prefix
ArtnetETH.h	Updated class names from generic to ArtnetETH prefix
ArtnetNativeEther.h	Updated class names from generic to ArtnetNativeEther prefix
examples/WiFi/*	Removed outdated comments and updated documentation
examples/Ethernet/*	Removed outdated comments and updated class names to ArtnetEther variants
examples/EthernetENC/*	Updated class names to ArtnetEtherENC variants
examples/ETH/*	Updated class names to ArtnetETH variants
README.md	Updated documentation to reflect new API and interface-specific usage
Artnet/Receiver.h	Changed flush() to clear() method call

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