Polaris: galil jaws support

[Tom-Willemsen]

Various support and diagnostics relating to 3 galil controllers on polaris (jaw sets 1-5):

Before galil controller power cycle:

• IBEX was talking fine with the controller (verified by sending messages in engineering view)
• IBEX was unable to move any of the stages controlling jaw blades
• IBEX was talking to the controller OK (e.g. energise light came on and saw motor pulses being sent when a move was requested)
• IBEX was able to move a small test stage that electronics section brought along
• A jog box plugged directly into the galil was unable to move the jaws

After a galil controller power cycle (on all 3 controllers, followed by IOC restarts and re-homes) the motion returned to normal. I am not sure why this helped or what state the galils had managed to get into.