Leonid Laboshin

Add velodyne HDL (32,64) support

26

We need to test and merge the following forks: HDL32 https://github.com/smori/loam_velodyne/commit/774d5117ffc7662cd30ef831be9ce82b6985d5df HDL64 https://github.com/YANG-H/loam_velodyne/commit/ba1d606d2ec62d48be484c28f71d8f29a08b9ab5 [vlp16, hdl32, hdl64] should be added as a param to .launch file