Move objdetect HaarCascadeClassifier and HOGDescriptor to contrib xobjdetect (#25198)

* Move objdetect parts to contrib

* Move objdetect parts to contrib

* Minor fixes.

doc/opencv.bib

@@ -623,15 +623,6 @@
   volume = {5},
   pages = {1530-1536}
 }
-@inproceedings{Lienhart02,
-  author = {Lienhart, Rainer and Maydt, Jochen},
-  title = {An extended set of haar-like features for rapid object detection},
-  booktitle = {Image Processing. 2002. Proceedings. 2002 International Conference on},
-  year = {2002},
-  pages = {I--900},
-  volume = {1},
-  publisher = {IEEE}
-}
 @article{Lowe04,
   author = {Lowe, David G.},
   title = {Distinctive Image Features from Scale-Invariant Keypoints},
@@ -1042,25 +1033,6 @@
   number = {3},
   publisher = {ACM}
 }
-@inproceedings{Viola01,
-  author = {Viola, Paul and Jones, Michael J.},
-  title = {Rapid object detection using a boosted cascade of simple features},
-  booktitle = {Computer Vision and Pattern Recognition, 2001. CVPR 2001. Proceedings of the 2001 IEEE Computer Society Conference on},
-  year = {2001},
-  pages = {I--511},
-  volume = {1},
-  publisher = {IEEE}
-}
-@article{Viola04,
-  author = {Viola, Paul and Jones, Michael J.},
-  title = {Robust real-time face detection},
-  journal = {International Journal of Computer Vision},
-  year = {2004},
-  volume = {57},
-  number = {2},
-  pages = {137--154},
-  publisher = {Kluwer Academic Publishers}
-}
 @inproceedings{WJ10,
   author = {Xu, Wei and Mulligan, Jane},
   title = {Performance evaluation of color correction approaches for automatic multi-view image and video stitching},
@@ -1159,14 +1131,6 @@
   year = {2013},
   publisher = {Springer}
 }
-@incollection{Liao2007,
-  title = {Learning multi-scale block local binary patterns for face recognition},
-  author = {Liao, Shengcai and Zhu, Xiangxin and Lei, Zhen and Zhang, Lun and Li, Stan Z},
-  booktitle = {Advances in Biometrics},
-  pages = {828--837},
-  year = {2007},
-  publisher = {Springer}
-}
 @incollection{nister2008linear,
   title = {Linear time maximally stable extremal regions},
   author = {Nist{\'e}r, David and Stew{\'e}nius, Henrik},