Adding metadata to CSV files downloaded from ninja website

Hi,

first of all a huge thank you for the great work done here, RN is truly a great example of open source project.

I have a little request: although I usually rely on the API, I know many people who prefer to use the website. It works great and it’s very well designed, but the CSV files do not include any metadata about the plant configuration (nominal power, tracking, orientation etc for PV, hub height and turbine model for wind), and when downloading multiple configs it is sometime hard to keep track of them or especially to reuse them in the future.

I know changing the CSV format could have side effects on users relying on a standardized format, but I think it would be great to include a line in the header to add this info (I guess it would be too much info to include into the filename).

Thank you again,
Giorgio