Convert decimals to roman numerals

Written in Rust

Inspired by Kevlin Henney

The aim of this example was to use lazy iteration to support enormous decimal numbers

Usage

$ cargo run <DECIMAL NUMBER>

Example

~\kata$cargo run 123
    Finished dev [unoptimized + debuginfo] target(s) in 0.02s
     Running `target\debug\kata.exe 123`
CXXIII