Merge pull request #22939 from stopmosk:21826-python-bindings-for-videocapturewaitany

Add Python bindings for VideoCapture::waitAny #21826

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake

modules/videoio/misc/python/pyopencv_videoio.hpp

@@ -1,5 +1,6 @@
 #ifdef HAVE_OPENCV_VIDEOIO
 typedef std::vector<VideoCaptureAPIs> vector_VideoCaptureAPIs;
+typedef std::vector<VideoCapture> vector_VideoCapture;
 
 template<> struct pyopencvVecConverter<cv::VideoCaptureAPIs>
 {
@@ -20,4 +21,14 @@ bool pyopencv_to(PyObject *o, std::vector<cv::VideoCaptureAPIs>& apis, const Arg
   return pyopencvVecConverter<cv::VideoCaptureAPIs>::to(o, apis, info);
 }
 
+template<> bool pyopencv_to(PyObject* obj, cv::VideoCapture& stream, const ArgInfo& info)
+{
+    Ptr<VideoCapture> * obj_getp = nullptr;
+    if (!pyopencv_VideoCapture_getp(obj, obj_getp))
+        return (failmsgp("Incorrect type of self (must be 'VideoCapture' or its derivative)") != nullptr);
+
+    stream = **obj_getp;
+    return true;
+}
+
 #endif // HAVE_OPENCV_VIDEOIO