Rename headers from .h to .hpp (#296)

* Rename headers from .h to .hpp per ROS2 guidelines

This change is the result of the following command run from pcl_ros dir:

$ find -name *.h | xargs -I {} mv {} {}pp

Signed-off-by: Sean Kelly <sean@seankelly.dev>

* Update internal includes for the renamed headers

This change was the result of the following bash script:

$ find -name *.h -o -name *.cpp -o -name *.hpp | xargs -I {} sed -i 's/\(pcl_ros\/.*\)\(h\)\([">]\)$/\1\2pp\3/g' {}

Signed-off-by: Sean Kelly <sean@seankelly.dev>

pcl_ros/tools/bag_to_pcd.cpp

@@ -51,7 +51,7 @@ Cloud Data) format.
 #include <pcl/io/io.h>
 #include <pcl/io/pcd_io.h>
 #include <pcl_conversions/pcl_conversions.h>
-#include "pcl_ros/transforms.h"
+#include "pcl_ros/transforms.hpp"
 #include <tf/transform_listener.h>
 #include <tf/transform_broadcaster.h>
 

pcl_ros/tools/pcd_to_pointcloud.cpp

@@ -54,7 +54,7 @@
 #include <pcl/point_types.h>
 #include <pcl_conversions/pcl_conversions.h>
 
-#include "pcl_ros/publisher.h"
+#include "pcl_ros/publisher.hpp"
 
 using namespace std;