Update point_cloud2_iterator.hpp (#298)

This adds `// IWYU pragma: private, include "sensor_msgs/point_cloud2_iterator.hpp" to the impl file.

This allows the IWYU tool to know that it shouldn't try to pull in the impl file and should instead rely on the public header.

See documentation here: https://github.com/include-what-you-use/include-what-you-use/blob/master/docs/IWYUPragmas.md#iwyu-pragma-private

Signed-off-by: Adam Leeper <[email protected]>

Author: adam-leeper-ai

sensor_msgs/include/sensor_msgs/impl/point_cloud2_iterator.hpp

@@ -29,6 +29,8 @@
 // This file is originally from:
 // https://github.com/ros/common_msgs/blob/50ee957/sensor_msgs/include/sensor_msgs/impl/point_cloud2_iterator.h
 
+// IWYU pragma: private, include "sensor_msgs/point_cloud2_iterator.hpp"
+
 #ifndef SENSOR_MSGS__IMPL__POINT_CLOUD2_ITERATOR_HPP_
 #define SENSOR_MSGS__IMPL__POINT_CLOUD2_ITERATOR_HPP_