Add needed files

Makefile

README.md

build/.built_by

build/COLCON_IGNORE

build/my_pkg/colcon_build.rc

build/my_pkg/colcon_command_prefix_setup_py.sh

build/my_pkg/colcon_command_prefix_setup_py.sh.env

build/my_pkg/my_pkg

build/my_pkg/my_pkg.egg-info/PKG-INFO

build/my_pkg/my_pkg.egg-info/SOURCES.txt

build/my_pkg/my_pkg.egg-info/dependency_links.txt

build/my_pkg/my_pkg.egg-info/entry_points.txt

build/my_pkg/my_pkg.egg-info/requires.txt

build/my_pkg/my_pkg.egg-info/top_level.txt

build/my_pkg/my_pkg.egg-info/zip-safe

build/my_pkg/package.xml

build/my_pkg/resource/my_pkg

build/my_pkg/setup.cfg

build/my_pkg/setup.py

build/my_pkg/share/my_pkg/hook/pythonpath_develop.dsv