Box.V2.Samples.JWTAuth - better day 1 experience

[ohadschn]

Currently if you clone the project and build you will get a build error about a missing private_key.pem, and you'll have to go look for that file and try to understand what the problem is, which you'll find in some random comment inside Program.cs. A much better solution would be to accept the private key as a command line parameter, or possibly take it from an environment variable.

[stale]

This issue has been automatically marked as stale because it has not been updated in the last 30 days. It will be closed if no further activity occurs within the next 7 days. Feel free to reach out or mention Box SDK team member for further help and resources if they are needed.