[`tb`,ffi] Implement Rust FFI and testbench integration #10592

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3 errors and 8 warnings

Failed to read /Users/ethan/Documents/GitHub/calyx/tools/tb/examples/calyx/adder.futil: No such file or directory (os error 2)

could not compile `calyx-ffi-example` (lib) due to 1 previous error

The process '/usr/local/cargo/bin/cargo' failed with exit code 101

The following actions uses node12 which is deprecated and will be forced to run on node16: actions-rs/cargo@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions-rs/cargo@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

unused import: `format_ident`

`calyx-ffi-macro` (lib) generated 1 warning (run `cargo fix --lib -p calyx-ffi-macro` to apply 1 suggestion)

unused import: `fs`

`tb` (lib) generated 1 warning (run `cargo fix --lib -p tb` to apply 1 suggestion)

[email protected]: Compiler version doesn't include clang or GCC: "cc" "--version"