`func Lookup(dir string) (Info, error)` returns the mount info that corresponds to the dir Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This moves both the Mount type and mountinfo into a single mount package. This also opens up the root of the repo to hold the containerd client implementation. Signed-off-by: Michael Crosby <crosbymichael@gmail.com>