* removed private flann documentation
* common tutorial images moved to doc/images
* grouping issues

original commit: https://github.com/opencv/opencv/commit/f3aab47f94f1dc5466ade4e98194f7ab9a02133a

Moved aruco dictionary globals into getPredefinedDictionary so constructed on first use, to allow lazy-loading of the opencv DLL

tesseract 4.x headers require C++11 (can't be used by OpenCV 3.4 without C++11)

  * add -Wno-psabi when using GCC 6
  * add -Wundef for CUDA 10
  * add -Wdeprecated-declarations when using GCC 7
  * add -Wstrict-aliasing and -Wtautological-compare for GCC 7
  * replace cudaThreadSynchronize with cudaDeviceSynchronize

original commit: https://github.com/opencv/opencv/commit/40c71a2463f27ec8625cba4823fcb82f8bb77590

  * limit the affect by using HAVE_CUDA

Enhance EdgeAwareInterpolation no. matches limitation (#2209)

* sparse_match_interpolators EdgeAwareInterpolation - enhance limitation of the maximal number of matches to be interpolated from SHORT_MAX to INT_MAX by substituting short by int types

* sparse_match_interpolators EdgeAwareInterpolation - enhance limitation of the maximal number of matches to be interpolated from SHORT_MAX to INT_MAX by substituting short by int types

* fix wrong allocation of labels mats CV16S to CV_32S

Signed-off-by: SSE4 <tomskside@gmail.com>