Every reason to get more HackerPoints™ is a good one, so today we're going to
write a neat command line app in .NET Core! The Common library has a really cool
package Microsoft.Extensions.CommandlineUtils
to help us parse command line
arguments and structure our app, but sadly it's undocumented.
No more! In this guide, we'll explore the package and write a really neat console app. We'll get good practices, a help system and argument parsing for free. Oh, it also involves ninjas. Insta-win.