Add two SL generic shortcuts for server info

$ slip <identifier> grabs the public IP
$ slip -p <identifier> grabs the private IP
$ slip -i <identifier> grabs the private IPMI IP (if hardware)
$ slip -h <identifier> signifies hardware rather than CCI

$ slpw <identifier> grabs the last known root password
$ slpw -h <identifier> signifies hardware rather than CCI