Parsing Roman numerals in F#

That is the best of the variants presented.

Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.idea/.idea.RomanNumerals/.idea		.idea/.idea.RomanNumerals/.idea
.run		.run
Roman		Roman
.gitignore		.gitignore
ReadMe.md		ReadMe.md
RomanNumerals.sln		RomanNumerals.sln
RomanNumerals.sln.DotSettings		RomanNumerals.sln.DotSettings
global.json		global.json

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