Improvements and fixes

Cooperations now have their own tab on the organization page. The plants table shows each plant's equipment and how its data is collected.

• Cooperations now have their own tab on the organization page, listed separately as outgoing and incoming, each searchable and split over pages.
• The plants table shows each plant's feed-in meters, inverters, combiner boxes, strings and sensors, with a legend for how their data is collected.