Add: Dockerfiles for Packages

[xsscx]

Pull Request Checklist

#596

• Have you followed the guidelines in Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you built your Pull Request locally with the Build Instructions?
• Have you added or updated relevant tests?
• Have you added or updated relevant docs?

[Copilot]

Pull request overview

This pull request adds Docker containerization support for the iccDEV project, introducing two Dockerfiles to build and distribute iccDEV tools and libraries as container images. This aligns with issue #596 to create packages for the GitHub Container Registry.

Changes:

• Added multi-stage Dockerfile for Ubuntu-based builds with ASAN/UBSAN instrumentation
• Added Dockerfile.nixos for NixOS-based builds with wxWidgets support
• Configured containers with pre-built iccDEV tools and libraries accessible via PATH

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 13 comments.

File	Description
Dockerfile	Multi-stage Ubuntu 26.04 build with Clang-18, ASAN, UBSAN, and automated test execution
Dockerfile.nixos	NixOS-based single-stage build using nix-shell with full dependency management