* Add new functions to communicator helper to return the user, password, host, based on the communicator used.
This implementation can help then generalize the provisioeners later on.
* Update null builder checks to utilize the new functions and check for ANY hostname or user or password
* Update builder to user any hostname
The null builder is not really a bulider, it just setups a SSH
connection and runs the provisioners. It can be used to debug
provisioners without incurring high wait times. It does not create any
kind of image or artifact.