* script to check copyright
Syntax: ./tools/check_copyright
* script to add license on missing files
Syntax: ./tools/add_license.sh
* copied templates and scripts to check/add license header to
file (go/yaml/yml/sh)
* Scripts can be customized for airshipui if required.
Change-Id: If14ee88c90c8a893fc1ab564a271a3e3337a4bf0