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>

Change signature of the importReconstruction function to allow for
correct python bindings to be exported.

  * use SOLVE_EPNP for the initial guess

original commit: https://github.com/opencv/opencv/commit/c6de84d868302c7a55852d86aab337a787030e07

* Add tracking-by_matching code and sample

* Make interface for PedestrianTracker

* Replace PedestrianTracker -> TrackerByMatching

* Make proper filtering by class id in tracking_by_matching

Also make the sample build in the case when opencv_dnn module is not
built.
Also help is added.

* Remove TODO-s from tracking_by_matching code

* Add parameter frame_step, add copyrights, fix warnings

* Remove copyright from tracking_by_matching

* Rename check macros and remove obsolete mentions of pedestrians

* Tune default thresholds in tracking_by_matching sample

* Add description of classes and factories

* Remove unrequired EOL-s at the end of files

* Replace pointers by references for output parameters

* Fix some warnings found by buildbot

* Fix warning from buildbot, tune some thresholds in tracking_by_matching

* Replace pragma once by ifndef-define clause

* Fix more Windows warnings

* Change case of methods of TrackerByMatching class

* Change name of methods to CamelCase in TrackerByMatching

* Make more convenient check macros in tracking_by_matching.cpp

* Simplify tracking_by_matching sample

* Fix Mac error in tracking_by_matching