#14 dry run option

[temp_user]

Hello, first of all thanks for the awesome project. I mainly use it for verifying files, but sometimes use it for creating checksum files, too.

One option i am missing is the dry run option. With this, we can have cfv show the result of an action without actually performing that action. This is great for testing different options when using the create mode. It can be implemented with a switch like --dry-run.

Thanks and keep up the great work.