Fix a typo error
Conflicts:
	modules/features2d/include/opencv2/features2d.hpp

- Fix both stitching_detailed.cpp sample and cv::Stitcher.

remove the unnecessary header file

check input paramter by checking the image size

Conflicts:
	samples/CMakeLists.txt

Conflicts:
	samples/gpu/video_writer.cpp

added launch bounds attributes for all CUDA kernels

uninitialized value

If used cl compiler, but generator is not Visual Studio e.g. Ninja,
enable FS option to prevent blocking PDB file in multithreaded build.

This retains the desirable quality of not including paths to CUDA libraries
from the build system into the config files, and has two major advantages:

* It removes the need to use link_directories, which doesn't guarantee that
  the libraries from the supplied directory will be used (there may be
  libraries with the same names earlier in the search path).

* It removes the need to put -L entries into OPENCV_LINKER_LIBS. This variable
  is used with target_link_libraries, where such entries are treated as linker
  flags, so doing this is unportable. I remove the support for -L entries
  from OpenCVGenPkgconfig.cmake, as well, to discourage adding them in the
  future.

There's no reason to do it twice.