Adds RomanNumeralConverter Kata.
Adds README for RomanNumeralsKata
Gradlefies RomanNumeralsKata.
Adds build to gitignore.
Adds fest assertions.
Gradle wrapper
Adds RomanNumeralsConvertorTest
Types RomanSymbol.
Refactors test to use new typed object.
Refactors RomanNumeralConverter.
Modifies main README.
Modifies RomanNumeralsKata README.