Point the PIAA deploy daemon at its controller

[mikelangmayr]

• Set the PIAA deploy controller's address and port, now that it is programmed for RS-232 and reachable on the terminal server
• Declare the controller's third axis as unexposed: nothing is wired to it and it reports a drifting position with its end-stop bit set, so this keeps it out of the keywords and stops its data being filed against the first axis
• Add the Xeryon daemon and its three instances to the daemon inventory, which had not listed them
• Verified against the hardware: the daemon connects, serves, and all 25 keywords read live values, with no motion commanded