func NewSshTargetWithPrivateKey(address string, key []byte) (Target, error) {
	return target.NewSshTargetWithPrivateKey(address, key)
}
Create a SSH target with a private access key
package urknall
import "github.com/dynport/urknall/target"
type Target interface {
	Command(cmd string) (target.ExecCommand, error)
	User() string
	String() string
	Reset() error
}
func NewSshTarget(address string) (Target, error) {
	return target.NewSshTarget(address)
}