fixed single-precision SVD accuracy on some very ill-conditioned matrices (ticket #1448)
fixed single-precision SVD accuracy on some very ill-conditioned matrices (ticket #1448)

opencv/opencv,apavlenko/opencv,opencv/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv