tree-command | csharp implementation of the tree command

tree-command is a C# library. tree-command has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is my version of of the tree command found in powershell / linux / unix for pretty printing directory hierarchies. It has error handling for UnauthorizedAccessException when a user doesn't have access to a directory. If we wanted to account for the case where a file is deleted during the program operation, we'd need to add some more error handling. This is a great example of using recursive methods. One improvement that could be made would be printing as the Node class is constructed rather than after it has been fully constructed. This would lower the memory utilization for deeply nested directory hierarchies and prevent the chance of a stack overflow. **I had the program mostly complete but couldn't get it quite right. Luckily, Andrew Lock's article was there to help me finish this.