Result concept exercise (initial draft)

[blackk-foxx]

This is not ready for a full review. At this point, I am seeking only high-level feedback on the initial draft, which hopefully conveys the intended design of the exercise.

TODO:

• Either rename the exercise to "Drink Recipes", or change the content to be food-oriented instead of alcohol-oriented.
• Add concept doc
• Add exercise instructions
• Organize tests into tasks

[github-actions]

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[blackk-foxx]

I'm still an intermediate-level F# coder, so any feedback on the algorithm here would be most welcome.

[blackk-foxx]

At this point, I think exemplar.fs and FamilyRecipesTests.fs are complete in terms of design. This version includes integer parsing, but not fractions as @BNAndras proposed. But I think it is complex enough as is. Other opinions?