Improvements to the Blueprints section

Hey!

I think the Blueprints is probably a encoded JSON file.

I'd like to see the following features:

1. The ability to view the structure of blueprints (folders, etc.).
2. Seeing which buildings are used in the blueprints.
3. If possible, view selected recipes and storage settings.
4. by Kayser @ +all stats per BP: Max electricity, computing, workers, pollution, maintenance, construction cost (some of which should also be added in game)
5. On the list page show not only upload date but also last update date

+all stats per BP: Max electricity, computing, workers, pollution, maintenance, construction cost (some of which should also be added in game)