Initial commit
add sco
Add 'lib/validator/' from commit '668d4cf8aec2b17058d8555c11b633fcaffc3086'

git-subtree-dir: lib/validator
git-subtree-mainline: 598b73f36cc8f0a80fa4f5c668ffbc8043cc76e3
git-subtree-split: 668d4cf8aec2b17058d8555c11b633fcaffc3086
validator