CMake variable `CMAKE_COMPILER_IS_CCACHE` is marked as deprecated and "# FIXIT Avoid setting of CMAKE_ variables". It is introduced in opencv#11167 which is before the release of 4.0. Since it's deprecated almost six years ago, I think it's OK to remove them.

Related: opencv#24771

Currently, even though libavif is found, the version of libavif will not
be printed. `find_package(libavif QUIET)` will set `libavif_VERSION`
according to cmake documentation https://cmake.org/cmake/help/latest/command/find_package.html#config-mode-version-selection

This patch has been tested on ArchLinux with libavif 1.0.3 installed.

Use normal slash in #include

imgcodecs: suppress warning at test_avif.cpp

Fix avif version detection

Concurrently writing to a vector<bool> is not thread-safe.

… raw video parsing mode

core: fix clang warnings

Fix aruco detector thread safety.

Better error message for missing gstreamer plugin

…directive

Correct invalid error directive

Fix building on OpenBSD X86

- intrinsics implementation (071) reworked to use modern RVV intrinsics syntax
- cmake toolchain file (071) now allows selecting from predefined configurations

Co-authored-by: Fang Sun <[email protected]>

Added test for YOLO NAS

…ew-rotate

Added screen rotation support to JavaCamera2View amd NativeCameraView. Fixed JavaCamera2View initialization. opencv#24869

Added automatic image rotation to JavaCamera2View and NativeCameraView so the video preview was matched with screen orientation.
Fixed double preview initialization bug in JavaCamera2View.
Added proper cameraID parsing to NativeCameraView similar to JavaCameraView

### 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
- [ ] There is a reference to the original bug report and related work
- [ ] 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

dnn: fix ocl_fp16 support of scatter layer

fix qnx-sdp-700 build

…envino-api10-backend

G-API: Ifdef OpenVINO API 1.0 functionality

Update applyColorMap document

RISC-V: updated intrin_rvv071.hpp to work with modern toolchain 2.8.0

Removed all pre-C++11 code, workarounds, and branches opencv#23736

This removes a bunch of pre-C++11 workrarounds that are no longer necessary as C++11 is now required.
It is a nice clean up and simplification.

* No longer unconditionally #include <array> in cvdef.h, include explicitly where needed
* Removed deprecated CV_NODISCARD, already unused in the codebase
* Removed some pre-C++11 workarounds, and simplified some backwards compat defines
* Removed CV_CXX_STD_ARRAY
* Removed CV_CXX_MOVE_SEMANTICS and CV_CXX_MOVE
* Removed all tests of CV_CXX11, now assume it's always true. This allowed removing a lot of dead code.
* Updated some documentation consequently.
* Removed all tests of CV_CXX11, now assume it's always true
* Fixed links.

---------

Co-authored-by: Maksim Shabunin <[email protected]>
Co-authored-by: Alexander Smorkalov <[email protected]>

Update windows_install.markdown - add set opencv path for vc17

…sions

jpeg: use libjpeg-turbo built-in color conversions

Fix generateImage for charuco chessboard