rutie 0.12.0

The tie between Ruby and Rust.
Documentation
pub mod array;
pub mod class;
pub mod debug;
pub mod encoding;
pub mod enumerator;
pub mod exception;
pub mod fixnum;
pub mod float;
pub mod gc;
pub mod global;
pub mod hash;
pub mod io;
pub mod io_buffer;
pub mod memory_view;
pub mod module;
pub mod numeric;
pub mod object;
pub mod ractor;
pub mod range;
pub mod regexp;
pub mod rproc;
pub mod rstruct;
pub mod string;
pub mod symbol;
pub mod thread;
pub mod time;
pub mod variable;
pub mod vm;