[HighGUI] On Windows: Support Ctrl+C to copy image to clipboard.
Added documentation.
Fixed indentation.
Clarified code.
corners
added timelapse
Openni2 support
Merge remote-tracking branch 'origin/master' into Openni2Support

Conflicts:
	modules/highgui/CMakeLists.txt
	modules/highgui/include/opencv2/highgui.hpp
	modules/highgui/include/opencv2/highgui/highgui_c.h
Openni2 support
added macro guard to enable overriding ENABLE_LOG
Add depends from highgui to imgcodecs and videoio. And include header from imgcodecs and videoio to imgcodecs
Optimize ocl version of warp_affine
Merge pull request #2961 from ilya-lavrenov:tapi_corners
Multi-radix with kernel generation
Enabled precalculated wave
Added fftplan cache
Completed all forward transforms.
Added packing to CCS format
Added DFT_SCALE for forward transforms
Added Elena's changes with implemented DFT_INVERSE C2C mode.