Support "net" key for CSV

[oschwald]

Previously, it was only implemented for IPFire. This allows MaxMind CSV files to be used without converting them first.

[dhaavi]

Hey @oschwald, sorry for the late reply.

Thanks a ton for your improvements - I am honoured by your contributions!

Please allow for a little more time before your PRs are handled. We are currently discussing maintenance of additional small projects and tools by Safing after the acquisition.

[dhaavi]

Hey @oschwald, thanks again for your improvements.

This took a bit longer than expected, but things should be faster going forward. If you have any questions or ideas, please don't hesitate to contact us here or me personally.

Have a great day!

[oschwald]

Thanks for reviewing and merging these!