Published as probabilitytofriendly_string crate.

Requires Ruby 2018 edition

Usage: ```rust use probabilitytofriendly_string::FriendlyProbability;

let friendly = FriendlyProbability::fromprobability(0.723); asserteq!(5, friendly.numerator()); asserteq!(7, friendly.denominator()); asserteq!("Good chance", friendly.friendlydescription()); asserteq!("5 in 7", friendly.friendly_string());

let friendly = FriendlyProbability::fromprobability(0.999); asserteq!(">99 in 100", friendly.friendly_string());

let friendly = FriendlyProbability::fromprobability(0.001); asserteq!("<1 in 100", friendly.friendly_string()); ```

Note that passing a value less than 0.0 or greater than 1.0 to FriendlyProbability::from_probability will panic.