Call find_package for OpenCV on Windows for modatv

CMakeLists.txt

@@ -444,6 +444,8 @@ endif()
 
 # unfortunately OpenCV library from windows doesn't set the cache option
 if(WIN32)
+  find_package(OpenCV OPTIONAL_COMPONENTS core highgui imgproc imgcodecs videoio) # channeltx/modatv
+
   set(OpenCV_INCLUDE_DIRS "${OpenCV_INCLUDE_DIRS}" CACHE INTERNAL "")
   set(OpenCV_LIBS "${OpenCV_LIBS}" CACHE INTERNAL "")