Adding missing attribution and license of code source in NDT implementation.
Much of the code in the NDT implementation of the line search implementation in Autoware.AUTO was copied from the Autoware.AI. This code was, in turn, copied from the PCL implementation. Attribution is given in the design file but nowhere in the source. This MR adds the proper attribution and license to the copied sections.
Closes #481
Edited by Dejan Pangercic