Both the Navigator and the mode manager decided when the climbout was over,
each by comparing an altitude of its own. They only agreed because they read
the same number.
Report the end of the climbout from the mode manager and act on it in
the Navigator, so that it is decided in one place. No behaviour change with
the default parameters.
Signed-off-by: mahima-yoga <mahima@auterion.com>
