Bright edges source code and demo (#1449)

* Bright edges source code and demo

* Fix mac errors

* Upload again because of null characters

* Convert to UTF-8

* Change cv::WindowFlags::WINDOW_AUTOSIZE

* Remove parameter

* Remove trailing white spaces (documentation builld error

* Remaining white spaces

* Correct warning

* Correct surround

* Add comment

* Moving prototype out of header

* Add ximgproc namespace, fix example.

* Fix namespace for example

* Remove windows desctruction

* Correct Mat declaration

* Removed unused gray

* Change local functions to static

* Remove tabs and replace by 4 spaces

* Add comments

* Fix comments

* Retry for random test stereo failure

Similar to other descriptors, if the input image is colored, covert it silently to gray-level rather than terminating the execution

aruco: fix dictionaries format description

Face alignment (#1199)

* This commit will add a new functionality of one millisecond face_alignment to OpenCV.
Face alignment is a computer vision technology for identifying the geometric structure of human faces in digital images.
Given the location and size of a face, it automatically determines the shape
 of the face components such as eyes and nose.
Added following functions :
 1) Application to train a face landmark detector.
 2) Application to detect face landmarks using a trained model.
 3) Application to swap faces using face landmark detection
 4) Application to detect landmarks in a video.
Merged the code with a global facemark API.
Added Doxygen Documentation for the Class created.
Added tutorials for the samples added.
Added visualisations depicting error rate and training time.

Made desired changes

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* face: drop duplicated file

-face_alignmentImpl.hpp
+face_alignmentimpl.hpp

* face: minor refactoring

- replace license headers
- fix usage of "precomp.hpp"

samples added

fix edgeboxes_demo

fix edgeboxes_demo

added edgeboxes bib

fix edgeboxes_demo

small fixes

fix edgeboxes_demo

fix warnings

fix warnings

small fixes

detectEdges needs rgb image instead bgr image.

Removed unnecessary protection

small fixes

- change face detector interface
- avoid using of legacy C-API defines
- simplify CV_Error()
- avoid using of legacy license headers