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.
Rewrite "Speed to Fly" calculation.