Merge pull request #29101 from asmorkalov:as/geometry_module

Moved geometry transformations from imgproc to 3d, future geometry module #29101

The first step of 2d geometry operations migration to the future geometry module.
I created 2d.hpp to isolate the moved functions for now. I propose to create geometry.hpp when the module is renamed and include all things there.

OpenCV contrib: https://github.com/opencv/opencv_contrib/pull/4126

### 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
- [ ] 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.
- [ ] The feature is well documented and sample code can be built with the project CMake

modules/dnn/CMakeLists.txt

@@ -19,7 +19,7 @@ ocv_add_dispatched_file_force_all("layers/cpu_kernels/transpose_kernels" AVX AVX
 ocv_add_dispatched_file_force_all("layers/cpu_kernels/gridsample_kernels" AVX AVX2 NEON RVV LASX)
 ocv_add_dispatched_file_force_all("layers/cpu_kernels/nary_eltwise_kernels" AVX AVX2 NEON RVV LASX)
 
-ocv_add_module(dnn opencv_core opencv_imgproc WRAP python java objc js)
+ocv_add_module(dnn opencv_core opencv_imgproc opencv_3d WRAP python java objc js)
 
 include(${CMAKE_CURRENT_LIST_DIR}/cmake/plugin.cmake)
 

modules/dnn/src/model.cpp

@@ -10,6 +10,7 @@
 #include <iterator>
 
 #include <opencv2/imgproc.hpp>
+#include <opencv2/3d.hpp>
 
 namespace cv {
 namespace dnn {

modules/dnn/src/nms.cpp

@@ -9,6 +9,7 @@
 #include "nms.inl.hpp"
 
 #include <opencv2/imgproc.hpp>
+#include <opencv2/3d.hpp>
 
 namespace cv { namespace dnn {
 CV__DNN_INLINE_NS_BEGIN

modules/dnn/test/test_common.impl.hpp

@@ -14,6 +14,7 @@
 
 #include <opencv2/core/utils/configuration.private.hpp>
 #include <opencv2/core/utils/logger.hpp>
+#include <opencv2/3d.hpp>
 
 #ifdef _WIN32
 #ifndef NOMINMAX

modules/dnn/test/test_model.cpp

@@ -4,6 +4,7 @@
 
 #include "test_precomp.hpp"
 #include <opencv2/dnn/shape_utils.hpp>
+#include <opencv2/3d.hpp>
 #include "npy_blob.hpp"
 #include <map>
 #include <set>