Introduced 'ColoredHashTSDFVolume', a new CPU-only volume type extending 'HashTSDFVolume' with color integration support. This feature enables reconstruction of colored 3D scenes using aligned depth and RGB images, while benefiting from the memory and performance advantages of hashed volumetric fusion.

Main contributions:

• New data structure to store both TSDF and RGB color information
• Extended raycasting and fetch functions to support color output

This enhancement follows the direction proposed in issue #25155 and addresses feature request #27286.

Pull Request Readiness Checklist

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

• I agree to contribute to the project under Apache 2 License.
• 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