Copyright for python3-rosdistro source package in Nile.bedrock

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: rosdistro
Source: https://github.com/ros-infrastructure/rosdistro

Files: *
Copyright: 2013, Open Source Robotics Foundation, Inc.
License: BSD-3-Clause
 See LICENSE.txt for full text.