add warning for inaccurate MeanRadiusValue #4111 (#4230)

    if (m_bundleSettings->solveTargetBody()) {

      m_rank += m_bundleSettings->numberTargetBodyParameters();

      if (m_bundleTargetBody->solveMeanRadius() || m_bundleTargetBody->solveTriaxialRadii()) {

        outputBundleStatus("Warning: Solving for the target body radii (triaxial or mean) "

                           "is NOT possible and likely increases error in the solve.\n");

      }

      if (m_bundleTargetBody->solveMeanRadius()){

        // Check if MeanRadiusValue is abnormal compared to observation

        bool isMeanRadiusValid = true;

        double localRadius, aprioriRadius;

        // Arbitrary control point containing an observed localRadius

        BundleControlPointQsp point = m_bundleControlPoints.at(0);

        SurfacePoint surfacepoint = point->adjustedSurfacePoint();

        localRadius = surfacepoint.GetLocalRadius().meters();

        aprioriRadius = m_bundleTargetBody->meanRadius().meters();

        // Ensure aprioriRadius is within some threshold

        // Considered potentially inaccurate if it's off by atleast a factor of two

        if (aprioriRadius >= 2 * localRadius || aprioriRadius <= localRadius / 2) {

            isMeanRadiusValid = false;

        }

        // Warn user for abnormal MeanRadiusValue

        if (!isMeanRadiusValid) {

          outputBundleStatus("Warning: User-entered MeanRadiusValue appears to be inaccurate. "

                             "This can cause a bundle failure.\n");

        }

      }

    }

    int num3DPoints = m_bundleControlPoints.size();