Remote IOCs: ioc running status

[Tom-Willemsen]

This ticket is a sub-ticket of #3125

As a developer/scientist, I would like to see whether an IOC is running locally, running remotely, or stopped in the normal start/stop iocs pane of a GUI running on the NDX instrument control PC. I would also like to be able to restart it from this menu.

Notes:

• Consider what it means for DEVICE_01 to be running on an instrument, bearing in mind that it might be connected to DEVICE_01 running on host1 and also DEVICE_01 running on host2.
  • We might need to include the hostname which the IOC is running on in the running IOC table for this to make any sense.
• Consider whether it is sensible to be able to start/stop remote IOCs from this menu.
• It is probably necessary to at least provide a restart option from this menu, as this is a common troubleshooting step which we should leave accessible.