Added fastcv color conversions

[gursimarsingh]

This pull request introduces FastCV-based color conversions:

    COLOR_YUV2YUV444sp_NV12      //!< FastCV: YCbCr420PseudoPlanar to YCbCr444PseudoPlanar
    COLOR_YUV2YUV422sp_NV12      //!< FastCV: YCbCr420PseudoPlanar to YCbCr422PseudoPlanar
    COLOR_YUV422sp2YUV444sp      //!< FastCV: YCbCr422PseudoPlanar to YCbCr444PseudoPlanar
    COLOR_YUV422sp2YUV_NV12      //!< FastCV: YCbCr422PseudoPlanar to YCbCr420PseudoPlanar
    COLOR_YUV444sp2YUV422sp      //!< FastCV: YCbCr444PseudoPlanar to YCbCr422PseudoPlanar
    COLOR_YUV444sp2YUV_NV12      //!< FastCV: YCbCr444PseudoPlanar to YCbCr420PseudoPlanar
    COLOR_YUV2RGB565_NV12        //!< FastCV: YCbCr420PseudoPlanar to RGB565
    COLOR_YUV422sp2RGB565        //!< FastCV: YCbCr422PseudoPlanar to RGB565
    COLOR_YUV422sp2RGB           //!< FastCV: YCbCr422PseudoPlanar to RGB888
    COLOR_YUV422sp2RGBA          //!< FastCV: YCbCr422PseudoPlanar to RGBA8888
    COLOR_YUV444sp2RGB565        //!< FastCV: YCbCr444PseudoPlanar to RGB565
    COLOR_YUV444sp2RGB           //!< FastCV: YCbCr444PseudoPlanar to RGB888
    COLOR_YUV444sp2RGBA          //!< FastCV: YCbCr444PseudoPlanar to RGBA8888
    COLOR_RGB2YUV_NV12           //!< FastCV: RGB888 to YCbCr420PseudoPlanar
    COLOR_RGB5652YUV444sp        //!< FastCV: RGB565 to YCbCr444PseudoPlanar
    COLOR_RGB5652YUV422sp        //!< FastCV: RGB565 to YCbCr422PseudoPlanar
    COLOR_RGB5652YUV_NV12        //!< FastCV: RGB565 to YCbCr420PseudoPlanar
    COLOR_RGB2YUV444sp           //!< FastCV: RGB888 to YCbCr444PseudoPlanar
    COLOR_RGB2YUV422sp           //!< FastCV: RGB888 to YCbCr422PseudoPlanar

Pull Request Readiness Checklist

See details at https://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

[gursimarsingh]

@asmorkalov I have added the implementation for the color conversions as requested https://github.com/opencv/fastcv-extention-module/issues/68

I still need to still add tests, but just need your confirmation if this is the right direction.