OptionLike and ResultLike

Define your own Option-like and Result-like enum types. Do not redefine option and result utilities to your own enums.

Option example ```rust use result_like::OptionLike;

// Simple case with single argument name OptionLike!(MyOption);

let v = MyOption::Some(1); // every option utilities are possible including unwrap, map, and, or etc. assert!(v.unwrap() == 1);

// convertable to option let opt = v.into_option(); assert!(opt == Some(1));

// With custom names OptionLike!(Number, Value, Nan);

let v = Number::Value(10); assert!(v != Number::Nan); ```

Result example in same way ```rust use result_like::ResultLike;

// simply, ResultLike!(MyResult);

// customizing, ResultLike!(Trial, Success, Failure); ```