Additional metadata values

[dtsob75]

This is a great, lightweight tool. THanks for creating it!

However, I needed some additional values in the metadata. I added these to the source that I downloaded from the sample. Not sure if you want these additional items or not. If you do, I can send them to you or upload the code. Here are the properties that I added: ``` public IList Authors { get; set; } public string Comments { get; set; } public string CameraManufacturer { get; set; } public string CameraModel { get; set; } public string CopyRight { get; set; } public string DateTaken { get; set; } public string Location { get; set; } (This is read-only, for some reason)