Imports of package credentials

PathSynopsis
github.com/docker/cli/cli/config/types
github.com/docker/docker-credential-helpers/client
github.com/docker/docker-credential-helpers/credentials
golang.org/x/sys/execabsPackage execabs is a drop-in replacement for os/exec that requires PATH lookups to find absolute paths.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.