[pdal] Support for BAG file format

[Howard Butler]

> On Sep 2, 2015, at 11:04 AM, Dan Ames <dan.ames at byu.edu> wrote:
> 
> Hi all, 
> 
> Glad to see that PDAL is still under very active development! (last commit 1 hour ago!)
> 
> Quick question: We have a new Velodyne VLP 16 LiDAR Puck that generates data in a .BAG file format. 
> 
> Does PDAL support this file? We'd like to convert it to LAS...

PDAL does not support BAG at this time, but it is a very simple format. Do you have a few small example files we can permanently add to the test suite? Maybe we could whip something up...

Howard