OpenCV script Add pkgconfig and deb package build

In the cmake command -D OPENCV_GENERATE_PKGCONFIG=YES see https://stackoverflow.com/a/62675970/2137364

For build deb package I use this command:
```
$ sed -i 's/CPACK_BINARY_DEB:BOOL=OFF/CPACK_BINARY_DEB:BOOL=ON/' CMakeCache.txt
$ sed -i 's/unknown/4.3.0/' CPackConfig.cmake
$ sed -i 's/unknown/4.3.0/' CPackSourceConfig.cmake
$ sudo make package
```

