TL;DR
Make it easier and for mods to define wind turbines.What?
LuaSurface currently has a few wind properties, but they only affect smoke/clouds.Please make it possible to:
- bind an electric-energy-interface to the surface's wind speed or a user-defined per-surface runtime variable. I don't want to adjust the power output of every entity regularly.
- allow entities with visuals depending on the surface's wind orientation or a user-defined per-surface runtime variable. I don't want to change sprites of every entity regularly.

