message: Fixed -Wextra-semi warnings in public headers
diff: @@ -289,14 +289,14 @@ public:
  /** @brief Set detection threshold.
  @param threshold AGAST detection threshold score.
  */
  - CV_WRAP virtual void setThreshold(int threshold) { CV_UNUSED(threshold); return; };
  - CV_WRAP virtual int getThreshold() const { return -1; };
  + CV_WRAP virtual void setThreshold(int threshold) { CV_UNUSED(threshold); return; }
  + CV_WRAP virtual int getThreshold() const { return -1; }
  /** @brief Set detection octaves.
  @param octaves detection octaves. Use 0 to do single scale.
  */
  - CV_WRAP virtual void setOctaves(int octaves) { CV_UNUSED(octaves); return; };
  - CV_WRAP virtual int getOctaves() const { return -1; };
  + CV_WRAP virtual void setOctaves(int octaves) { CV_UNUSED(octaves); return; }
  + CV_WRAP virtual int getOctaves() const { return -1; }
  };
  /** @brief Class implementing the ORB (*oriented BRIEF*) keypoint detector and descriptor extractor
  