Implementation of Quasi Dense Stereo algorithm. (#1941)

* initial commit.

* Remove license header.

* Fix python wrap flags

* Change std::string to cv::String, in function declarations, to resolve compilation issues.

* Add python wrapper extending header

* Fix python wrapper conflicts

* Fix implicit type conversions

* Change C API types and enums to C++.

* Remove redundant included headers and move wanted headers to src/precomp.hpp

* Remove saturate header

* Remove unnecessary python wrapping flags

* Removed defaults parameter header

* Split declaration and implementation of the class using Pimpl.

* Fix to comply with new public API.

* Remove unnecessary modules

* Fix maybe-uninitialized warnings on linux

* Migration to stereo module

* Remove CV_PROP_RW flag.

* Remove CV_EXPORTS flags from class members.

* Fix: Removed misplaced flag

* Remove empty lines.

* Move queue to private headers.

* Fix default arguments of public methods.

* Add authors information and switch to the compact version of license header.

* Reorganize and fix markdown files. Create a table of content and move tutorials in new directories. Modify samples and tutorials to use snippet and include Doxygen commands.

* Change argument name dMatch->denseMatch, to avoid confusion with cv::DMatch build-in type.

* Remove duplicate snippet.

* Fix: change vector resize to reserve.

* Fix: replace extensive license header with the compact version.

- uninitialized variable 'previous_size'
- incorrect Mat element access pattern via address arithmetic

removed warnings

clip tab warning fixed

fixed tab size warning

added a new sample

the new sample

fixed spacing problem

added a testing for the penalties

fixed sample warning

fixed last warnings

added tests and modified a bit the sources

added the tests

fixed warning

removed redundant samples

Rename Sample3.cpp to sample.cpp

renamed from Sample3 to sample

refactored sample

repaired descriptor test

added test data

usless info erased from test block matching

added last tests

did some modifications to the files

whitespace removal

did some modifications to the testing files

fixed test descriptor issue

Revert "whitespace removal"

This reverts commit 76d4aa530fee8f7444de6c80ecb4fc9c80ec0677.

corrected part of the comments

made modifications so the sources build successfully

fixed some issue for sub pixel

refactored sample

fixed small issue at testing

added some performance files

performance tests and other corrections

corrected the paths and added some images

fixed a bug

Delete imgKitty.bmp

Delete imgKittyl.bmp

performance tests again....

added larger images

fixed issues

did some last changes

added the copyright notice

fixed some linux errors

Removed the matching cpp file as it is no longer usefull

removed warnings

header for some used functions

fixed the popcnt issue

changes according to comments

fixed that unused variable warning

fixed windows warnings

Added 2 samples just to show how to access functionality

fixed issues

added the up to date version of sbm

modified samples to be warning free

removed the filterSpeckles, getValidDisparityROI, validateDisparities functions and added the calib3d module in the dependency

changed the ptr<StereBinaryBM> to ptr<cv::stereo::StereoBinaryBM>

modified the documentation

modified documentation for the stereo_c

documentation

doc

fixed two issues

modfified the precomp.hpp header by explicitly adding the cvdef header from core

modified comments for documentation for stereo and removed some headers

added a header and modified some function definition

test

test 2

changed exports_w to exports

removed the correct matches module