[C#] Add concepts for protein-translation exercise

[robkeim]

Solves #264

There turned out to be more concepts than what I was originally imagining for such a straight-forward exercise. Let me know if any of the concepts are too fine grained.

[ErikSchierboom]

I think this is great! One small suggestion: maybe also add a link to the actual exercise in the v2 csharp repository?

Maybe we should also be listing different approaches (if there are any). Like https://github.com/exercism/v3/pull/234/files does. But I'm not entirely sure other approaches are common. Maybe one could use a dictionary or an if-statement instead of the switch? And it might also be possible to use LINQ here (TakeWhile).

[robkeim]

Thanks for the review! Regarding this:

Maybe we should also be listing different approaches (if there are any). Like https://github.com/exercism/v3/pull/234/files does. But I'm not entirely sure other approaches are common. Maybe one could use a dictionary or an if-statement instead of the switch? And it might also be possible to use LINQ here (TakeWhile).

Good idea regarding the dictionary vs switch statement approach. Regarding the TakeWhile approach, how exactly were you thinking of using it?

[ErikSchierboom]

Regarding the TakeWhile approach, how exactly were you thinking of using it?

I'm not sure. Let's ignore this.

[ErikSchierboom]

/rebase

[ErikSchierboom]

/rebase