[idd/client] apply the Windows display color transform

Honor the IddCx 3x4 XYZ matrix and post-transfer LUT in the IDD
conversion pipeline. Carry transform changes to the client so EGL applies
the same calibration to hardware cursors, and invalidate the full frame
whenever calibration changes.

client/include/interface/renderer.h

@@ -158,6 +158,11 @@ typedef struct LG_RendererOps
   bool (*onMouseShape)(LG_Renderer * renderer, const LG_RendererCursor cursor,
       const int width, const int height, const int pitch, const uint8_t * data);
 
+  /* optional display calibration update for hardware cursor composition
+   * Context: cursorThread */
+  void (*onMouseColorTransform)(LG_Renderer * renderer,
+      const KVMFRColorTransform * transform);
+
   /* called when the mouse has moved or changed visibillity
    * Context: cursorThread */
   bool (*onMouseEvent)(LG_Renderer * renderer, const bool visible, int x, int y,