Deploy: script to deploy VHDs onto an instrument

As a developer I would like to be able to take the VHDs which were built in https://github.com/ISISComputingGroup/IBEX/issues/4415 and make them into a runnable instrument.

This needs a script which executes once when we first install a new VHD onto an instrument. Things that need doing as part of this script:
- MySQL service registration
- The python user setup
- Register the ISISICP service
- Update configs directory to current machine

Potential discussion points:
- When will this script be run
- Where should this script live (presumably it should use our normal deploy script framework)
- Under what user account will it be run