Refactor ts CMakeLists.txt

[EvgenyAgafonchikov]

Code

if(NOT WINRT)
  ocv_add_module(ts INTERNAL opencv_core opencv_imgproc opencv_imgcodecs opencv_videoio opencv_highgui)
else()
  ocv_add_module(ts INTERNAL opencv_core opencv_imgproc opencv_imgcodecs opencv_videoio)
endif()

can be optimized as

ocv_add_module(ts INTERNAL opencv_core opencv_imgproc opencv_imgcodecs opencv_videoio)
if(NOT WINRT)
  ocv_add_module(opencv_highgui)
endif()

however this causes build issues on Linux