Vendor containers/storage, update containers/image

Vendor containers/storage, and its dependencies github.com/pborman/uuid
and github.com/mistifyio/go-zfs, which we didn't already use.

Update the build Dockerfile to install their dependencies.

Add scriptlets that try to detect whether or not we need to use the
"libdm_no_deferred_remove" and/or "btrfs_noversion" build tags.

Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>

vendor/github.com/containers/storage/pkg/system/filesys.go

@@ -0,0 +1,19 @@
+// +build !windows
+
+package system
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// MkdirAll creates a directory named path along with any necessary parents,
+// with permission specified by attribute perm for all dir created.
+func MkdirAll(path string, perm os.FileMode) error {
+	return os.MkdirAll(path, perm)
+}
+
+// IsAbs is a platform-specific wrapper for filepath.IsAbs.
+func IsAbs(path string) bool {
+	return filepath.IsAbs(path)
+}