feat: init
Just a quick test on Hare <-> Rust FFI.
Uses cc to link the final binary, since Rust's static libraries produce .a
archives which hare build doesn't pick up automagically (unlike plain .os).
Although, the above only matters if you want the Rust standard library. Without
it, rustc can build a simple .o file that works on its own and
automagically with hares module system (assuming glibc is present, I think).
Parse hare deps for that.