Function best_intersection_of_rays 

pub fn best_intersection_of_rays<Coords, R>(
    rays: &[Ray<Coords, R>],
) -> Result<Points<Coords, R, U1, Owned<R, U1, U3>>, Error>
where
    Coords: CoordinateSystem,
    R: RealField,
    DefaultAllocator: Allocator<Dyn, U3> + Allocator<U1, Dyn> + Allocator<U1, U3>,

Return the 3D point which is the best intersection of rays.