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/drivers/driver_freebsd.go

@@ -0,0 +1,19 @@
+package graphdriver
+
+import "syscall"
+
+var (
+	// Slice of drivers that should be used in an order
+	priority = []string{
+		"zfs",
+	}
+)
+
+// Mounted checks if the given path is mounted as the fs type
+func Mounted(fsType FsMagic, mountPath string) (bool, error) {
+	var buf syscall.Statfs_t
+	if err := syscall.Statfs(mountPath, &buf); err != nil {
+		return false, err
+	}
+	return FsMagic(buf.Type) == fsType, nil
+}