Add calibrated consumption and mean consumption

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/add-calibrated-consumption-and-mean-consumption/
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I'd like to see the actual calibrated consumption at 110km/h in any corner of the display. Very useful when pulling caravan or similar.
Also the mean consumption for the last 10 km or so.