Add atom to development environment

relates #1 (closed)

ade start --force --select 1-atom --check

If ~/.atom does not exist yet within ade, an initial set of atom plugins will be installed. Among other build-colcon an atom plugin we created to support colcon development.

Test build with:

• In ade build AutowareAuto once with colcon build
• Run atom and add a ROS package as a project folder
• Edit some files and build with F9