[FaceRecognitionThread] fix getting and release CapVideo inside run method. Make some format changes.
[FaceRecognition] Update selection in CamSelect window to not use unnecessary slot and remove it. Add signal and slot for seting CapVideo into FaceRecognitionThread and FaceRecognitionWindow for setting Camera before thread is start. So user can choose different camera when thread is restarted.
[CapVideo] remove obsolete creatGreatImage() method and do same small changes in formating
[ArucoThread] update Aruco to use Camera Singleton. Add new member mCapVideo that will provide frames and add slot setCapVideo() to set it. Delete obsolete CaptureVideo and includes.
[CamSelectWindow, CapWideo] add forward declaration to this classes and classes related to FaceDetection.
[CamSelectCore, OpenCVCore] update selectCamera() to create CamSelectWindow in stack instead of dynamic, what is better for modal window because we recreated again. Add callin CamSelectCore destructor into OpenCVCore destructor.
Merge branch 'hotfixes-ArucoCameraSingleton' into features-RotateGraphByMouse-David