FFI interface for kiibohd-core crates. This is useful when you want to encompass all (or a set) of kiibohd-core crates as a single static library to import into your C firmware.
This library is meant to be built for many platforms. Generally these are tested:
You'll need to be using Rust nightly and cargo-c.
```bash rustup install nightly cargo install cargo-c --force
cargo +nightly cbuild cargo +nightly cbuild --target thumbv7em-none-eabi --release ```