Add script to compile jsk_pcl_ros with latest PCL on ubuntu precise

Add a script `install_latest_pcl.sh` to compile jsk_pcl_ros with latest PCL.

The problem is hydro and groovy ROS apt packages are depending on boost 1.46, however
the latest PCL depends on boost 1.47 and later version.

This script install boost 1.48 (stable version) under separated workspace and compile
whole ROS packages with boost 1.48 and latest PCL.

usage is `./install_latest_pcl.sh DIR`
* Install boost 1.48 under DIR/usr
* install latest PCL under DIR/usr
* install ROS fundamental packages under DIR/ros_parent
* install jsk_pcl_ros under DIR/ros