Rust FFI bindings to FNA3D generated with bindgen
To compile FNA3D, we need to have mojoshader_version.h in FNA3D/MojoShader. It is generated when we run camke for MojoShader. However, crates.io doesn't allow us to generate the file when we build the crate. Therefore, we carefully publish this crate with cargo publish --allow-dirty, including mojoshader_version.h.
mojoshader_version.h is manually cached in wrappers directory and copied to FNA3D/MojoShader when building.