[Danger] Add a check for lib code before failing the build
[Danger] Add a check for lib code before failing the build

artsy/eigen,artsy/emission,artsy/eigen,artsy/emission,artsy/eigen,artsy/emission,artsy/emission,artsy/emission,artsy/eigen,artsy/emission,artsy/emission,artsy/eigen,artsy/eigen,artsy/eigen