Primarily for crossing cell border case. Each Navigator::update call has a cost.
Doing it multiple times per frame increased frame duration on cell loading.
Call Navigator::wait only when cell has changed but do not use
Scene::hasCellChanged because it doesn't always indicates it.
Cylinder collision shape should give the best consistency between physics
simulation and pathfinding. Rotating box is already used by some actors, so
add it to have the same collision shape type for all actors.
To make sure RecastMesh objects are equal if built with the same data but in
different order. Will be used later when there will be more than one place
building RecasMesh objects.
