Spindown mode for wheel-driven trainers

Please support this.  It used to be just computrainers that needed this, but with the Snap an other smart trainer offerings that are driven with the wheel rather than directly spindown will be more and more important.

At the moment, doing a spindown is a pain because unpairing often results in not being able to re-pair unless one quits the zwift app…which is stupid.  So, either fix that bug, or properly implement a spindown mode.

If you want to see how the user experience should look/feel, demo a copy of PerfProStudio and you’ll see how good it should be.