Update rawdata.cc
Update rawdata.cc

Give the ability to define min and max angles to publish.
The driver will publish the points located in the area defined by min_angle and max_angle. The other points are ignored.
davidlandry93/velodyne,niosus/velodyne,jpgr87/velodyne,davidlandry93/velodyne,vrabaud/velodyne,jpgr87/velodyne,wenjiebit/velodyne,davidlandry93/velodyne,wenjiebit/velodyne,lemiant/velodyne,pierriko/velodyne,lemiant/velodyne,niosus/velodyne,vrabaud/velodyne,lemiant/velodyne,pierriko/velodyne,vrabaud/velodyne,wenjiebit/velodyne,niosus/velodyne,jpgr87/velodyne,pierriko/velodyne