Remove all using directives for STL namespace and members

Made all STL usages explicit to be able automatically find all usages of
particular class or function.

modules/highgui/src/grfmt_bmp.cpp

@@ -499,7 +499,7 @@ ImageEncoder BmpEncoder::newEncoder() const
     return new BmpEncoder;
 }
 
-bool  BmpEncoder::write( const Mat& img, const vector<int>& )
+bool  BmpEncoder::write( const Mat& img, const std::vector<int>& )
 {
     int width = img.cols, height = img.rows, channels = img.channels();
     int fileStep = (width*channels + 3) & -4;