Add a walking skeleton for rs_bindings_from_cc generator

In this CL we use:
* `StandaloneClangTool` for the actual executable (since that is what people (= dmitrig@) recommended)
* clang::tooling::runToolOnCodeWithArgs for unit testing the AstVisitor
* GBashUnit for integration test

PiperOrigin-RevId: 387391923
14 files changed
tree: 4cf02c988df2889148d8c822730aeba95da07ffc
  1. rs_bindings_from_cc/
  2. CODE_OF_CONDUCT
  3. CONTRIBUTING
  4. LICENSE
  5. README.md
README.md

Crubit: C++/Rust Bidirectional Interop Tool

Extremely experimental interop tooling for C++ and Rust.

Please don‘t use, this is an experiment and we don’t yet know where will it take us. There will be breaking changes without warning. Unfortunately, we can't take contributions at this point.