Make a properties/configuration service

[dperl-dls]

which we can query for:

• "should we use GPU or traditional XRC results"?
• "should we set the stub offsets"
• beamline parameters (will remain file-based for now)
• etc.?

[DominicOram]

As discussed. MVP for this is:

• A service run in central K8s
• Service backed by a redis database
• A REST interface on this service to get/set feature flags of:
  • Use panda
  • Panda run up distance
  • Use GPU
• Hyperion able to get values from this service
• If the service is unavailable Hyperion logs an ERROR but defaults back to turning the feature off and continues anyway
• Remove being given these values from GDA