While dragging waypoints around, don't grow the time axis according
to dive duration (including deco stops) as this can explode too
easly resulting in an effectively unresponsive planner. Rather
grow it only (slowly) when a dive handler is moved to the right
10% of the profile.
Signed-off-by: Robert C. Helling <helling@atdotde.de>
e06b507230