Add TODO.md, ARCHITECTURE.md. Update README.md. and add kernel proxy

[xwings]

Checklist

Which kind of PR do you create?

• This PR only contains minor fixes.
• This PR contains major feature update.
• This PR introduces a new function/api for Qiling Framework.

Coding convention?

• The new code conforms to Qiling Framework naming convention.
• The imports are arranged properly.

Submodule update:

• Updated the examples/rootfs submodule to a newer commit, likely bringing in new or updated root filesystem examples.

• Essential comments are added.
• The reference of the new code is pointed out.

Extra tests?

• No extra tests are needed for this PR.
• I have added enough tests for this PR.
• Tests will be added after some discussion and review.

Changelog?

• This PR doesn't need to update Changelog.
• Changelog will be updated after some proper review.
• Changelog has been updated in my PR.

Target branch?

• The target branch is dev branch.

One last thing

• I have read the contribution guide

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This pull request updates the Qiling Framework with improvements to documentation and Linux syscall mapping. The most significant changes are a major rewrite and reorganization of the README.md for clarity and conciseness, and the addition of new Linux syscalls to the mapping tables. There are also minor maintenance updates.

Documentation improvements:

• Completely rewrote and reorganized README.md to improve clarity, update feature lists, restructure sections (including installation, usage, and comparison with similar tools), and provide more concise usage examples. Outdated or redundant content was removed, and new links and contact information were added. [1] [2] [3] [4] [5] [6]

• Removed the TODO file, directing users to the GitHub issues page for feature requests and outstanding tasks.

Linux syscall table updates:

• Added new Linux syscalls (e.g., clone3, memfd_secret, futex_waitv, etc.) to the syscall mapping dictionaries in qiling/os/linux/map_syscall.py, ensuring more complete and up-to-date syscall coverage for emulation. [1] [2] [3] [4]