compatability issue of pcl_ros for ros2

[vamsikalagaturu]

PCL_ROS is not completely ported to ROS2.

• Open issue

• https://github.com/mikeferguson/ros2_cookbook/blob/main/rclcpp/pcl.md

[MannavaVivek]

Current option is to clone the foxy-devel branch of preception_pcl repo and build the pcl_ros package. While the transformPointCloud() method is available, it is different from the one available for ROS1, and also the tf preprocessing before the actual pointcloud transformation is now to be done with tf2_ros and the same methods are not available, so alternatives to achieve the same results are to be researched.