disable windows build warning for connectedcomponents template argument comparisons

modules/imgproc/src/connectedcomponents.cpp

@@ -43,6 +43,10 @@
 #include "precomp.hpp"
 #include <vector>
 
+#if defined _MSC_VER
+#pragma warning(disable: 4127)
+#endif
+
 namespace cv{
     namespace connectedcomponents{