[#349] Bazel for Rust crates

[elBoberido]

Notes for Reviewer

This PR introduces rules_rust for the bazel build and makes the foreign_cc based approach obsolete. For now, bazel supports only Linux.

With the port to rules_rust, the build is now also fully sandboxed.

Pre-Review Checklist for the PR Author

1. Add sensible notes for the reviewer
2. PR title is short, expressive and meaningful
3. Relevant issues are linked in the References section
4. Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
5. Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
6. Commits messages are according to this guideline
   • Commit messages have the issue ID ([#123] Add posix ipc example)
   • Commit author matches Eclipse Contributor Agreement (and ECA is signed)
7. Tests follow the best practice for testing
8. Changelog updated in the unreleased section including API breaking changes
9. Assign PR to reviewer
10. All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• Commits are properly organized and messages are according to the guideline
• Unit tests have been written for new behavior
• Public API is documented
• PR title describes the changes

Post-review Checklist for the PR Author

1. All open points are addressed and tracked via issues

References

Relates to #349

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.12%. Comparing base (a684249) to head (baec928).
Report is 32 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #452      +/-   ##
==========================================
- Coverage   79.16%   79.12%   -0.04%     
==========================================
  Files         196      196              
  Lines       23540    23540              
==========================================
- Hits        18635    18627       -8     
- Misses       4905     4913       +8     

Files with missing lines	Coverage Δ
iceoryx2-pal/posix/src/lib.rs	58.82% <ø> (ø)

... and 9 files with indirect coverage changes

[elfenpiff]

We need to link this somewhere as publicly as possible. Maybe as a hint that plops up when the bazel CI pipeline fails.

[elfenpiff]

Maybe an FAQ for developers?

[elBoberido]

@elfenpiff Do you have an idea where to place it? doc/FAQ.md? I will add this in a follow up.

[elfenpiff]

@elBoberido how about GITROOT/DEV_FAQ.md