Improve Conditional/Copy/Deinterleave/Fill function descriptions in SimdLib.hpp

Align C++ wrapper Doxygen comments with the improved C API wording and
record the documentation updates under release 7.2.165.

Co-authored-by: Ihar Yermalayeu <ermig1979@gmail.com>

Author: cursoragent

docs/2026.html

@@ -111,6 +111,20 @@ <h5>Improving</h5>
  <li>Improved description of function Simd::ConditionalCount16i.</li>
  <li>Improved description of function Simd::ConditionalSum.</li>
  <li>Improved description of function Simd::ConditionalSquareSum.</li>
+ <li>Improved description of function Simd::ConditionalSquareGradientSum.</li>
+ <li>Improved description of function Simd::ConditionalFill.</li>
+ <li>Improved description of function Simd::Copy.</li>
+ <li>Improved description of function Simd::CopyFrame.</li>
+ <li>Improved description of function Simd::DeinterleaveUv.</li>
+ <li>Improved description of function Simd::DeinterleaveBgr.</li>
+ <li>Improved description of function Simd::DeinterleaveBgra.</li>
+ <li>Improved description of function Simd::DeinterleaveRgb.</li>
+ <li>Improved description of function Simd::DeinterleaveRgba.</li>
+ <li>Improved description of function Simd::Fill.</li>
+ <li>Improved description of function Simd::FillFrame.</li>
+ <li>Improved description of function Simd::FillBgr.</li>
+ <li>Improved description of function Simd::FillBgra.</li>
+ <li>Improved description of function Simd::FillPixel.</li>
 </ul>
 
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