Ticket2787: Harmonise Galil Motor ioc

[DominicOram]

Description of work

See ISISComputingGroup/IBEX#2787

To test

• Ensure you have pulled and built all three PRs
• Run the associated upgrade script
• Ensure that:
  • When adding a galil to a configuration in the GUI it prompts for the new style macros
  • The generic axis.cmd is loaded for each galil axis
  • Galil parameters are autosaved and recovered correctly
  • Galil axes still contribute to the motors moving display and are stopped by stop all
  • The position of a galil in the Table of Motors can be set by MTRCTRL
  • The IOC still works for a simulated motor and a real controller

Notes:

• Loading individual axes at runtime was not done as it would require even larger changes to configurations and to underlying galil support dbs
• RECSIM was not added due to asynFloat64 never finishes processing in IOCTestFramework IBEX#2736

Confirm documentation at
https://github.com/ISISComputingGroup/ibex_developers_manual/wiki/Motor-IOCs

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Code Review

• Pertitent information and a copy of the manual has been stored in the wiki
• Does the IOC conform to IBEX standards?
  • PV naming.
  • Disable records
  • Record simulation
  • Finishing touches
• If an OPI has been modified, does it conform to the style guidelines?
• Have the changes been recorded appropriately in the release notes?

Functional Tests

• IOC responds correctly in:
  • Devsim mode
  • Recsim mode
  • Real device, if available
• Supplementary IOCs (..._0n where n>1) run correctly
• Log files do not report undefined macros (serach for macLib: macro to find instances of macLib: macro [macro name] is undefined...

Final steps

• Update the IOC submodule in the main EPICS repo. See Git workflow page for details.
• Reviewer has moved the release notes entry for this ticket in the "Changes merged into master" section