[WIP] Rewrite Xinu OS in C++ with traits from Minix

[Copilot]

• Update README.md with project description and goals
• Create basic C++ project structure (include, src, docs directories)
• Add initial build system (Makefile)
• Create core system header files for kernel components
• Add initial source files for kernel initialization
• Create documentation structure
• Add .gitignore for C++ project
• Create LICENSE file
• Add CONTRIBUTING.md guidelines

Original prompt

This repo will be rewrite of xinu os in c+ with some traits take from minix so it will be a mixture of both

exprected end date OCT,2026

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