Add BFMatcher_OCL class alias for BruteForceMatcher_OCL. This adds a similar interface with pure-cpp and gpu versions.
Add BFMatcher_OCL class alias for BruteForceMatcher_OCL.
This adds a similar interface with pure-cpp and gpu versions.

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