fix auto MC = Average climb rate don't work if no task defined
fix auto MC = final don't work if Active task point is not last and final is forced !
Change Glide Polar Cache Speed Step to 0.5m/s
Add best speed and min climb rate for reach ESS conical tp to Polar analysis page.
Analysis : Glide Polar
  - remove polar name, already print in dialog title.
  - remove Wing load if Polar don't have wing area.
Draw Conical ESS turnpoint slope in next waypoint side view.