Intense Tornadoes can strip bark off of trees

[rankieth]

Whenever the port to 1.16 happens, a cool feature idea would be that tornadoes with 200 or more mph winds can, on occasion, strip the bark off of trees, leaving behind the stripped variant.

[Mrbt0907]

That actually would have been already possible, just I would have to add the conversion to the replace list. I'll make that a default feature when I port there.